<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
<channel>
<title>Selfomy Hỏi Đáp - Toán lớp 11 - Các câu hỏi gần đây</title>
<link>https://selfomy.com/hoidap/questions/h%E1%BB%8Dc-t%E1%BA%ADp/to%C3%A1n/to%C3%A1n-l%E1%BB%9Bp-11</link>
<description>Powered by Question2Answer</description>
<item>
<title>Cho hình chóp S.ABCD có đáy ABCD là hình bình hành. Gọi I và J lần lượt là trọng tâm các tam giác SAB và SAD....</title>
<link>https://selfomy.com/hoidap/476806/cho-h%C3%ACnh-ch%C3%B3p-abcd-abcd-h%C3%ACnh-b%C3%ACnh-h%C3%A0nh-l%C6%B0%E1%BB%A3t-tr%E1%BB%8Dng-tam-gi%C3%A1c-sab</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/476806/cho-h%C3%ACnh-ch%C3%B3p-abcd-abcd-h%C3%ACnh-b%C3%ACnh-h%C3%A0nh-l%C6%B0%E1%BB%A3t-tr%E1%BB%8Dng-tam-gi%C3%A1c-sab</guid>
<pubDate>Thu, 09 Oct 2025 17:00:38 +0000</pubDate>
</item>
<item>
<title>Tìm x từ phương trình</title>
<link>https://selfomy.com/hoidap/476797/t%C3%ACm-x-t%E1%BB%AB-ph%C6%B0%C6%A1ng-tr%C3%ACnh</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/476797/t%C3%ACm-x-t%E1%BB%AB-ph%C6%B0%C6%A1ng-tr%C3%ACnh</guid>
<pubDate>Wed, 16 Jul 2025 16:33:06 +0000</pubDate>
</item>
<item>
<title>Cho hình chóp S.ABCD đáy là hình thang. M là tđ SA, N thuộc SC. P thuộc AB. Xác định thiết diện của hình chóp S.ABCD</title>
<link>https://selfomy.com/hoidap/476791/h%C3%ACnh-ch%C3%B3p-h%C3%ACnh-thang-thu%E1%BB%99c-thu%E1%BB%99c-%C4%91%E1%BB%8Bnh-thi%E1%BA%BFt-di%E1%BB%87n-h%C3%ACnh-ch%C3%B3p-abcd</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/476791/h%C3%ACnh-ch%C3%B3p-h%C3%ACnh-thang-thu%E1%BB%99c-thu%E1%BB%99c-%C4%91%E1%BB%8Bnh-thi%E1%BA%BFt-di%E1%BB%87n-h%C3%ACnh-ch%C3%B3p-abcd</guid>
<pubDate>Sat, 14 Jun 2025 11:32:33 +0000</pubDate>
</item>
<item>
<title>Tính diện tích của tam giác A9B9C9. </title>
<link>https://selfomy.com/hoidap/475885/t%C3%ADnh-di%E1%BB%87n-t%C3%ADch-c%E1%BB%A7a-tam-gi%C3%A1c-a9b9c9-%C2%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/475885/t%C3%ADnh-di%E1%BB%87n-t%C3%ADch-c%E1%BB%A7a-tam-gi%C3%A1c-a9b9c9-%C2%A0</guid>
<pubDate>Sun, 10 Nov 2024 19:10:16 +0000</pubDate>
</item>
<item>
<title>có bao nhiêu số tự nhiên chia hết cho 3, biết số đó gồm 2018 chữ số lấy từ tập X={3;5:7;9}</title>
<link>https://selfomy.com/hoidap/475137/c%C3%B3-bao-nhi%C3%AAu-nhi%C3%AAn-chia-h%E1%BA%BFt-cho-bi%E1%BA%BFt-%C4%91%C3%B3-g%E1%BB%93m-2018-ch%E1%BB%AF-s%E1%BB%91-l%E1%BA%A5y-t%E1%BB%AB-t%E1%BA%ADp</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/475137/c%C3%B3-bao-nhi%C3%AAu-nhi%C3%AAn-chia-h%E1%BA%BFt-cho-bi%E1%BA%BFt-%C4%91%C3%B3-g%E1%BB%93m-2018-ch%E1%BB%AF-s%E1%BB%91-l%E1%BA%A5y-t%E1%BB%AB-t%E1%BA%ADp</guid>
<pubDate>Thu, 22 Aug 2024 22:39:38 +0000</pubDate>
</item>
<item>
<title>Tất cả các giá trị thực của tham số m</title>
<link>https://selfomy.com/hoidap/473924/t%E1%BA%A5t-c%E1%BA%A3-c%C3%A1c-gi%C3%A1-tr%E1%BB%8B-th%E1%BB%B1c-c%E1%BB%A7a-tham-s%E1%BB%91-m</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473924/t%E1%BA%A5t-c%E1%BA%A3-c%C3%A1c-gi%C3%A1-tr%E1%BB%8B-th%E1%BB%B1c-c%E1%BB%A7a-tham-s%E1%BB%91-m</guid>
<pubDate>Mon, 15 Jan 2024 19:44:23 +0000</pubDate>
</item>
<item>
<title>Số 2 là số hạng thứ bao nhiêu</title>
<link>https://selfomy.com/hoidap/473926/s%E1%BB%91-2-l%C3%A0-s%E1%BB%91-h%E1%BA%A1ng-th%E1%BB%A9-bao-nhi%C3%AAu</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473926/s%E1%BB%91-2-l%C3%A0-s%E1%BB%91-h%E1%BA%A1ng-th%E1%BB%A9-bao-nhi%C3%AAu</guid>
<pubDate>Mon, 15 Jan 2024 19:44:18 +0000</pubDate>
</item>
<item>
<title>năm 2028 hãng xe ô tô niêm yết giá bán</title>
<link>https://selfomy.com/hoidap/473927/n%C4%83m-2028-h%C3%A3ng-xe-%C3%B4-t%C3%B4-ni%C3%AAm-y%E1%BA%BFt-gi%C3%A1-b%C3%A1n</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473927/n%C4%83m-2028-h%C3%A3ng-xe-%C3%B4-t%C3%B4-ni%C3%AAm-y%E1%BA%BFt-gi%C3%A1-b%C3%A1n</guid>
<pubDate>Mon, 15 Jan 2024 19:44:16 +0000</pubDate>
</item>
<item>
<title>giá trị trong mẫu số liệu lớn hơn a là</title>
<link>https://selfomy.com/hoidap/473929/gi%C3%A1-tr%E1%BB%8B-trong-m%E1%BA%ABu-s%E1%BB%91-li%E1%BB%87u-l%E1%BB%9Bn-h%C6%A1n%C2%A0a%C2%A0l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473929/gi%C3%A1-tr%E1%BB%8B-trong-m%E1%BA%ABu-s%E1%BB%91-li%E1%BB%87u-l%E1%BB%9Bn-h%C6%A1n%C2%A0a%C2%A0l%C3%A0</guid>
<pubDate>Mon, 15 Jan 2024 19:44:15 +0000</pubDate>
</item>
<item>
<title>Hỏi sau 10 lần đặt cược</title>
<link>https://selfomy.com/hoidap/473928/ho%CC%89i-sau-10-l%E1%BA%A7n-%C4%91%E1%BA%B7t-c%C6%B0%E1%BB%A3c</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473928/ho%CC%89i-sau-10-l%E1%BA%A7n-%C4%91%E1%BA%B7t-c%C6%B0%E1%BB%A3c</guid>
<pubDate>Mon, 15 Jan 2024 19:44:15 +0000</pubDate>
</item>
<item>
<title>Tìm độ dịch chuyển của hòn đá sau 3s</title>
<link>https://selfomy.com/hoidap/473179/t%C3%ACm-%C4%91%E1%BB%99-d%E1%BB%8Bch-chuy%E1%BB%83n-c%E1%BB%A7a-h%C3%B2n-%C4%91%C3%A1-sau-3s</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473179/t%C3%ACm-%C4%91%E1%BB%99-d%E1%BB%8Bch-chuy%E1%BB%83n-c%E1%BB%A7a-h%C3%B2n-%C4%91%C3%A1-sau-3s</guid>
<pubDate>Wed, 22 Nov 2023 12:35:26 +0000</pubDate>
</item>
<item>
<title>Giá trị lớn nhất, nhỏ nhất của hàm số y= 3 - 2cos2x lần lượt là:</title>
<link>https://selfomy.com/hoidap/473182/gi%C3%A1-tr%E1%BB%8B-l%E1%BB%9Bn-nh%E1%BA%A5t-nh%E1%BB%8F-nh%E1%BA%A5t-c%E1%BB%A7a-h%C3%A0m-s%E1%BB%91-y-3-2cos2x-l%E1%BA%A7n-l%C6%B0%E1%BB%A3t-l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473182/gi%C3%A1-tr%E1%BB%8B-l%E1%BB%9Bn-nh%E1%BA%A5t-nh%E1%BB%8F-nh%E1%BA%A5t-c%E1%BB%A7a-h%C3%A0m-s%E1%BB%91-y-3-2cos2x-l%E1%BA%A7n-l%C6%B0%E1%BB%A3t-l%C3%A0</guid>
<pubDate>Wed, 22 Nov 2023 12:35:22 +0000</pubDate>
</item>
<item>
<title>Tính xác suất để 3 bạn được chọn toàn nam</title>
<link>https://selfomy.com/hoidap/473183/t%C3%ADnh-x%C3%A1c-su%E1%BA%A5t-%C4%91%E1%BB%83-3-b%E1%BA%A1n-%C4%91%C6%B0%E1%BB%A3c-ch%E1%BB%8Dn-to%C3%A0n-nam</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473183/t%C3%ADnh-x%C3%A1c-su%E1%BA%A5t-%C4%91%E1%BB%83-3-b%E1%BA%A1n-%C4%91%C6%B0%E1%BB%A3c-ch%E1%BB%8Dn-to%C3%A0n-nam</guid>
<pubDate>Wed, 22 Nov 2023 12:35:21 +0000</pubDate>
</item>
<item>
<title>Trong mặt phẳng tọa độ Oxy, tìm ảnh của đường tròn (c):(x-1)2 + (y + 2)2 = 4 qua phép đối xứng trục Ox.</title>
<link>https://selfomy.com/hoidap/473185/trong-m%E1%BA%B7t-ph%E1%BA%B3ng-t%E1%BB%8Da-oxy-t%C3%ACm-%E1%BA%A3nh-c%E1%BB%A7a-%C4%91%C6%B0%E1%BB%9Dng-tr%C3%B2n-qua-ph%C3%A9p-x%E1%BB%A9ng-tr%E1%BB%A5c</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473185/trong-m%E1%BA%B7t-ph%E1%BA%B3ng-t%E1%BB%8Da-oxy-t%C3%ACm-%E1%BA%A3nh-c%E1%BB%A7a-%C4%91%C6%B0%E1%BB%9Dng-tr%C3%B2n-qua-ph%C3%A9p-x%E1%BB%A9ng-tr%E1%BB%A5c</guid>
<pubDate>Wed, 22 Nov 2023 12:35:19 +0000</pubDate>
</item>
<item>
<title>Giao tuyến của hai mặt phẳng (SBM) và (SAC) là</title>
<link>https://selfomy.com/hoidap/473184/giao-tuy%E1%BA%BFn-c%E1%BB%A7a-hai-m%E1%BA%B7t-ph%E1%BA%B3ng-sbm-v%C3%A0-sac-l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473184/giao-tuy%E1%BA%BFn-c%E1%BB%A7a-hai-m%E1%BA%B7t-ph%E1%BA%B3ng-sbm-v%C3%A0-sac-l%C3%A0</guid>
<pubDate>Wed, 22 Nov 2023 12:35:18 +0000</pubDate>
</item>
<item>
<title>Nghiệm của phương trình 2sin x + 1 = 0 là</title>
<link>https://selfomy.com/hoidap/473186/nghi%E1%BB%87m-c%E1%BB%A7a-ph%C6%B0%C6%A1ng-tr%C3%ACnh-2sin-x-1-0-l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473186/nghi%E1%BB%87m-c%E1%BB%A7a-ph%C6%B0%C6%A1ng-tr%C3%ACnh-2sin-x-1-0-l%C3%A0</guid>
<pubDate>Wed, 22 Nov 2023 12:35:15 +0000</pubDate>
</item>
<item>
<title>Dãy số (un) có un = n/n+1 là dãy số như thế nào ?</title>
<link>https://selfomy.com/hoidap/473187/d%C3%A3y-s%E1%BB%91-un-c%C3%B3-un-n-n-1-l%C3%A0-d%C3%A3y-s%E1%BB%91-nh%C6%B0-th%E1%BA%BF-n%C3%A0o</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473187/d%C3%A3y-s%E1%BB%91-un-c%C3%B3-un-n-n-1-l%C3%A0-d%C3%A3y-s%E1%BB%91-nh%C6%B0-th%E1%BA%BF-n%C3%A0o</guid>
<pubDate>Wed, 22 Nov 2023 12:35:14 +0000</pubDate>
</item>
<item>
<title>Tìm số hạng thứ 11 của cấp số cộng có số hạng đầu bằng 3 và công sai d = -2</title>
<link>https://selfomy.com/hoidap/473188/t%C3%ACm-s%E1%BB%91-h%E1%BA%A1ng-th%E1%BB%A9-11-c%E1%BB%A7a-c%E1%BA%A5p-s%E1%BB%91-c%E1%BB%99ng-c%C3%B3-s%E1%BB%91-h%E1%BA%A1ng-%C4%91%E1%BA%A7u-b%E1%BA%B1ng-v%C3%A0-c%C3%B4ng-sai</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473188/t%C3%ACm-s%E1%BB%91-h%E1%BA%A1ng-th%E1%BB%A9-11-c%E1%BB%A7a-c%E1%BA%A5p-s%E1%BB%91-c%E1%BB%99ng-c%C3%B3-s%E1%BB%91-h%E1%BA%A1ng-%C4%91%E1%BA%A7u-b%E1%BA%B1ng-v%C3%A0-c%C3%B4ng-sai</guid>
<pubDate>Wed, 22 Nov 2023 12:35:13 +0000</pubDate>
</item>
<item>
<title>Trong mặt phẳng tọa độ ( Oxy), ảnh của điểm M(1; -2) qua phép vị tự tâm O tỉ số k = -2 là:</title>
<link>https://selfomy.com/hoidap/473189/trong-m%E1%BA%B7t-ph%E1%BA%B3ng-t%E1%BB%8Da-%C4%91%E1%BB%99-oxy-%E1%BA%A3nh-c%E1%BB%A7a-%C4%91i%E1%BB%83m-qua-ph%C3%A9p-v%E1%BB%8B-t%E1%BB%B1-t%C3%A2m-t%E1%BB%89-s%E1%BB%91-l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473189/trong-m%E1%BA%B7t-ph%E1%BA%B3ng-t%E1%BB%8Da-%C4%91%E1%BB%99-oxy-%E1%BA%A3nh-c%E1%BB%A7a-%C4%91i%E1%BB%83m-qua-ph%C3%A9p-v%E1%BB%8B-t%E1%BB%B1-t%C3%A2m-t%E1%BB%89-s%E1%BB%91-l%C3%A0</guid>
<pubDate>Wed, 22 Nov 2023 12:35:12 +0000</pubDate>
</item>
<item>
<title>Cho dãy số (un) thỏa mãn lim (un - 2020) = 1. Giá trị của lim un bằng bao nhiêu</title>
<link>https://selfomy.com/hoidap/473190/cho-d%C3%A3y-un-th%E1%BB%8Fa-m%C3%A3n-lim-un-2020-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-un-b%E1%BA%B1ng-bao-nhi%C3%AAu</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473190/cho-d%C3%A3y-un-th%E1%BB%8Fa-m%C3%A3n-lim-un-2020-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-un-b%E1%BA%B1ng-bao-nhi%C3%AAu</guid>
<pubDate>Wed, 22 Nov 2023 12:35:11 +0000</pubDate>
</item>
<item>
<title>Cho hai dẫy số (un), (vn) thỏa mãn lim un = -4 và lim vn = -8. Giá trị của lim (un - vn) bằng bao nhiêu</title>
<link>https://selfomy.com/hoidap/473191/cho-hai-d%E1%BA%ABy-th%E1%BB%8Fa-m%C3%A3n-lim-un-v%C3%A0-lim-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-b%E1%BA%B1ng-bao-nhi%C3%AAu</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473191/cho-hai-d%E1%BA%ABy-th%E1%BB%8Fa-m%C3%A3n-lim-un-v%C3%A0-lim-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-b%E1%BA%B1ng-bao-nhi%C3%AAu</guid>
<pubDate>Wed, 22 Nov 2023 12:35:09 +0000</pubDate>
</item>
<item>
<title>Cho dãy số (un) thõa mãn lim un = 5. Giá trị của lim (un + 2) bằng bao nhiêu</title>
<link>https://selfomy.com/hoidap/473193/cho-d%C3%A3y-s%E1%BB%91-un-th%C3%B5a-m%C3%A3n-lim-un-5-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-un-2-b%E1%BA%B1ng-bao-nhi%C3%AAu</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473193/cho-d%C3%A3y-s%E1%BB%91-un-th%C3%B5a-m%C3%A3n-lim-un-5-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-un-2-b%E1%BA%B1ng-bao-nhi%C3%AAu</guid>
<pubDate>Wed, 22 Nov 2023 12:35:08 +0000</pubDate>
</item>
<item>
<title>Cho hai dãy số (un), (vn) thỏa mãn lim un = 18 và lim vn = 3. Giá trị của lim (un/vn) bằng bao nhiêu</title>
<link>https://selfomy.com/hoidap/473192/cho-hai-d%C3%A3y-th%E1%BB%8Fa-m%C3%A3n-lim-18-v%C3%A0-lim-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-b%E1%BA%B1ng-bao-nhi%C3%AAu</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473192/cho-hai-d%C3%A3y-th%E1%BB%8Fa-m%C3%A3n-lim-18-v%C3%A0-lim-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%A7a-lim-b%E1%BA%B1ng-bao-nhi%C3%AAu</guid>
<pubDate>Wed, 22 Nov 2023 12:35:08 +0000</pubDate>
</item>
<item>
<title>Cho hình chóp S.ABCD có đáy là hình bình hành. Gọi N là trung điểm của cạnh SC. Lấy điểm M đối xứng với B qua A.</title>
<link>https://selfomy.com/hoidap/473153/h%C3%ACnh-ch%C3%B3p-abcd-h%C3%ACnh-b%C3%ACnh-h%C3%A0nh-trung-%C4%91i%E1%BB%83m-c%E1%BA%A1nh-%C4%91i%E1%BB%83m-x%E1%BB%A9ng-v%E1%BB%9Bi-qua</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473153/h%C3%ACnh-ch%C3%B3p-abcd-h%C3%ACnh-b%C3%ACnh-h%C3%A0nh-trung-%C4%91i%E1%BB%83m-c%E1%BA%A1nh-%C4%91i%E1%BB%83m-x%E1%BB%A9ng-v%E1%BB%9Bi-qua</guid>
<pubDate>Tue, 21 Nov 2023 12:51:11 +0000</pubDate>
</item>
<item>
<title>Tìm số hạng không chứa x trong khai triển (x^2+ 1/x^3)^5</title>
<link>https://selfomy.com/hoidap/473154/t%C3%ACm-s%E1%BB%91-h%E1%BA%A1ng-kh%C3%B4ng-ch%E1%BB%A9a-x-trong-khai-tri%E1%BB%83n-x-2-1-x-3-5</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473154/t%C3%ACm-s%E1%BB%91-h%E1%BA%A1ng-kh%C3%B4ng-ch%E1%BB%A9a-x-trong-khai-tri%E1%BB%83n-x-2-1-x-3-5</guid>
<pubDate>Tue, 21 Nov 2023 12:51:08 +0000</pubDate>
</item>
<item>
<title>Hỏi có bao nhiêu cách chọn 5 học sinh đi làm nhiệm vụ</title>
<link>https://selfomy.com/hoidap/473155/h%E1%BB%8Fi-c%C3%B3-bao-nhi%C3%AAu-c%C3%A1ch-ch%E1%BB%8Dn-5-h%E1%BB%8Dc-sinh-%C4%91i-l%C3%A0m-nhi%E1%BB%87m-v%E1%BB%A5</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473155/h%E1%BB%8Fi-c%C3%B3-bao-nhi%C3%AAu-c%C3%A1ch-ch%E1%BB%8Dn-5-h%E1%BB%8Dc-sinh-%C4%91i-l%C3%A0m-nhi%E1%BB%87m-v%E1%BB%A5</guid>
<pubDate>Tue, 21 Nov 2023 12:51:06 +0000</pubDate>
</item>
<item>
<title>Giải phương trình sau: sin^2.x - 3sinx + 2 = 0</title>
<link>https://selfomy.com/hoidap/473156/gi%E1%BA%A3i-ph%C6%B0%C6%A1ng-tr%C3%ACnh-sau-sin-2-x-3sinx-2-0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473156/gi%E1%BA%A3i-ph%C6%B0%C6%A1ng-tr%C3%ACnh-sau-sin-2-x-3sinx-2-0</guid>
<pubDate>Tue, 21 Nov 2023 12:51:05 +0000</pubDate>
</item>
<item>
<title>Tìm công bội q của một cấp số nhân (un) có và u1 = 1/2 và u6 = 16</title>
<link>https://selfomy.com/hoidap/473157/t%C3%ACm-c%C3%B4ng-b%E1%BB%99i-q-c%E1%BB%A7a-m%E1%BB%99t-c%E1%BA%A5p-s%E1%BB%91-nh%C3%A2n-un-c%C3%B3-v%C3%A0-u1-1-2-v%C3%A0-u6-16</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473157/t%C3%ACm-c%C3%B4ng-b%E1%BB%99i-q-c%E1%BB%A7a-m%E1%BB%99t-c%E1%BA%A5p-s%E1%BB%91-nh%C3%A2n-un-c%C3%B3-v%C3%A0-u1-1-2-v%C3%A0-u6-16</guid>
<pubDate>Tue, 21 Nov 2023 12:51:04 +0000</pubDate>
</item>
<item>
<title>Có bao nhiêu số tự nhiên có 5 chữ số được thành lập từ các chữ số 1, 2, 3, 4, 5, 6, 7, 8, 9.</title>
<link>https://selfomy.com/hoidap/473158/c%C3%B3-bao-nhi%C3%AAu-s%E1%BB%91-t%E1%BB%B1-nhi%C3%AAn-c%C3%B3-5-ch%E1%BB%AF-s%E1%BB%91-%C4%91%C6%B0%E1%BB%A3c-th%C3%A0nh-l%E1%BA%ADp-t%E1%BB%AB-c%C3%A1c-ch%E1%BB%AF-s%E1%BB%91-1</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473158/c%C3%B3-bao-nhi%C3%AAu-s%E1%BB%91-t%E1%BB%B1-nhi%C3%AAn-c%C3%B3-5-ch%E1%BB%AF-s%E1%BB%91-%C4%91%C6%B0%E1%BB%A3c-th%C3%A0nh-l%E1%BA%ADp-t%E1%BB%AB-c%C3%A1c-ch%E1%BB%AF-s%E1%BB%91-1</guid>
<pubDate>Tue, 21 Nov 2023 12:51:02 +0000</pubDate>
</item>
<item>
<title>Thiết diện tạo bởi mặt phẳng (MNE) và tứ diện ABCD là</title>
<link>https://selfomy.com/hoidap/473160/thi%E1%BA%BFt-di%E1%BB%87n-t%E1%BA%A1o-b%E1%BB%9Fi-m%E1%BA%B7t-ph%E1%BA%B3ng-mne-v%C3%A0-t%E1%BB%A9-di%E1%BB%87n-abcd-l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473160/thi%E1%BA%BFt-di%E1%BB%87n-t%E1%BA%A1o-b%E1%BB%9Fi-m%E1%BA%B7t-ph%E1%BA%B3ng-mne-v%C3%A0-t%E1%BB%A9-di%E1%BB%87n-abcd-l%C3%A0</guid>
<pubDate>Tue, 21 Nov 2023 12:51:00 +0000</pubDate>
</item>
<item>
<title>Trong mặt phẳng tọa độ Oxy, tìm ảnh của đường thẳng d: x + 2y - 3 = 0 qua phép tịnh tiên theo vecto v (1;-1)</title>
<link>https://selfomy.com/hoidap/473159/trong-ph%E1%BA%B3ng-oxy-t%C3%ACm-%E1%BA%A3nh-%C4%91%C6%B0%E1%BB%9Dng-th%E1%BA%B3ng-ph%C3%A9p-t%E1%BB%8Bnh-ti%C3%AAn-theo-vecto</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473159/trong-ph%E1%BA%B3ng-oxy-t%C3%ACm-%E1%BA%A3nh-%C4%91%C6%B0%E1%BB%9Dng-th%E1%BA%B3ng-ph%C3%A9p-t%E1%BB%8Bnh-ti%C3%AAn-theo-vecto</guid>
<pubDate>Tue, 21 Nov 2023 12:51:00 +0000</pubDate>
</item>
<item>
<title>Tìm số hạng chứa x^3 trong khai triển (x-1/2x)^9</title>
<link>https://selfomy.com/hoidap/473161/t%C3%ACm-s%E1%BB%91-h%E1%BA%A1ng-ch%E1%BB%A9a-x-3-trong-khai-tri%E1%BB%83n-x-1-2x-9</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473161/t%C3%ACm-s%E1%BB%91-h%E1%BA%A1ng-ch%E1%BB%A9a-x-3-trong-khai-tri%E1%BB%83n-x-1-2x-9</guid>
<pubDate>Tue, 21 Nov 2023 12:50:56 +0000</pubDate>
</item>
<item>
<title>Hỏi có thể lập được bao nhiêu tam giác mà các đỉnh của nó thuộc tập điểm đã cho?</title>
<link>https://selfomy.com/hoidap/473163/h%E1%BB%8Fi-l%E1%BA%ADp-%C4%91%C6%B0%E1%BB%A3c-bao-nhi%C3%AAu-tam-gi%C3%A1c-c%C3%A1c-%C4%91%E1%BB%89nh-c%E1%BB%A7a-thu%E1%BB%99c-t%E1%BA%ADp-%C4%91i%E1%BB%83m-cho</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473163/h%E1%BB%8Fi-l%E1%BA%ADp-%C4%91%C6%B0%E1%BB%A3c-bao-nhi%C3%AAu-tam-gi%C3%A1c-c%C3%A1c-%C4%91%E1%BB%89nh-c%E1%BB%A7a-thu%E1%BB%99c-t%E1%BA%ADp-%C4%91i%E1%BB%83m-cho</guid>
<pubDate>Tue, 21 Nov 2023 12:50:55 +0000</pubDate>
</item>
<item>
<title>Tìm tập xác định của hàm số y = tan x</title>
<link>https://selfomy.com/hoidap/473162/t%C3%ACm-t%E1%BA%ADp-x%C3%A1c-%C4%91%E1%BB%8Bnh-c%E1%BB%A7a-h%C3%A0m-s%E1%BB%91-y-tan-x</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/473162/t%C3%ACm-t%E1%BA%ADp-x%C3%A1c-%C4%91%E1%BB%8Bnh-c%E1%BB%A7a-h%C3%A0m-s%E1%BB%91-y-tan-x</guid>
<pubDate>Tue, 21 Nov 2023 12:50:55 +0000</pubDate>
</item>
<item>
<title>Số vị trí biểu diễn nghiệm của phương trình sin (s - 2π/3) = 1/2 trên đường tròn lượng giác là ?</title>
<link>https://selfomy.com/hoidap/472886/tr%C3%AD-bi%E1%BB%83u-di%E1%BB%85n-nghi%E1%BB%87m-ph%C6%B0%C6%A1ng-tr%C3%ACnh-tr%C3%AAn-%C4%91%C6%B0%E1%BB%9Dng-tr%C3%B2n-l%C6%B0%E1%BB%A3ng-gi%C3%A1c</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/472886/tr%C3%AD-bi%E1%BB%83u-di%E1%BB%85n-nghi%E1%BB%87m-ph%C6%B0%C6%A1ng-tr%C3%ACnh-tr%C3%AAn-%C4%91%C6%B0%E1%BB%9Dng-tr%C3%B2n-l%C6%B0%E1%BB%A3ng-gi%C3%A1c</guid>
<pubDate>Tue, 31 Oct 2023 22:07:27 +0000</pubDate>
</item>
<item>
<title>Tất cả các nghiệm của phương trình 2cos^2x - √3 sin2x = 3 là ?</title>
<link>https://selfomy.com/hoidap/472888/t%E1%BA%A5t-c%E1%BA%A3-c%C3%A1c-nghi%E1%BB%87m-c%E1%BB%A7a-ph%C6%B0%C6%A1ng-tr%C3%ACnh-2cos-2x-%E2%88%9A3-sin2x-3-l%C3%A0</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/472888/t%E1%BA%A5t-c%E1%BA%A3-c%C3%A1c-nghi%E1%BB%87m-c%E1%BB%A7a-ph%C6%B0%C6%A1ng-tr%C3%ACnh-2cos-2x-%E2%88%9A3-sin2x-3-l%C3%A0</guid>
<pubDate>Tue, 31 Oct 2023 22:07:25 +0000</pubDate>
</item>
<item>
<title>Trong mặt phẳng Oxy, cho điểm A(0; 5). Tìm tọa độ ảnh A' của điểm A qua phép quay tâm O góc quay 90 độ ?</title>
<link>https://selfomy.com/hoidap/472889/trong-m%E1%BA%B7t-ph%E1%BA%B3ng-%C4%91i%E1%BB%83m-t%C3%ACm-t%E1%BB%8Da-%E1%BA%A3nh-c%E1%BB%A7a-%C4%91i%E1%BB%83m-ph%C3%A9p-quay-t%C3%A2m-g%C3%B3c-quay</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/472889/trong-m%E1%BA%B7t-ph%E1%BA%B3ng-%C4%91i%E1%BB%83m-t%C3%ACm-t%E1%BB%8Da-%E1%BA%A3nh-c%E1%BB%A7a-%C4%91i%E1%BB%83m-ph%C3%A9p-quay-t%C3%A2m-g%C3%B3c-quay</guid>
<pubDate>Tue, 31 Oct 2023 22:07:24 +0000</pubDate>
</item>
<item>
<title>Cho hình vuông tâm O. Hỏi có bao nhiêu phép quay tâm O góc quay α, 0 &lt; a ≤ 2π biến hình vuông thành chính nó ?</title>
<link>https://selfomy.com/hoidap/472887/cho-h%C3%ACnh-vu%C3%B4ng-nhi%C3%AAu-ph%C3%A9p-quay-quay-bi%E1%BA%BFn-h%C3%ACnh-vu%C3%B4ng-th%C3%A0nh-ch%C3%ADnh</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/472887/cho-h%C3%ACnh-vu%C3%B4ng-nhi%C3%AAu-ph%C3%A9p-quay-quay-bi%E1%BA%BFn-h%C3%ACnh-vu%C3%B4ng-th%C3%A0nh-ch%C3%ADnh</guid>
<pubDate>Tue, 31 Oct 2023 22:05:06 +0000</pubDate>
</item>
<item>
<title>123456789939049</title>
<link>https://selfomy.com/hoidap/472342/123456789939049</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/472342/123456789939049</guid>
<pubDate>Tue, 17 Oct 2023 13:24:31 +0000</pubDate>
</item>
<item>
<title>Đội thanh niên xung kích của một trường phổ thông có 10 học sinh.....</title>
<link>https://selfomy.com/hoidap/471677/%C4%91%E1%BB%99i-thanh-ni%C3%AAn-xung-k%C3%ADch-c%E1%BB%A7a-m%E1%BB%99t-tr%C6%B0%E1%BB%9Dng-ph%E1%BB%95-th%C3%B4ng-c%C3%B3-10-h%E1%BB%8Dc-sinh</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/471677/%C4%91%E1%BB%99i-thanh-ni%C3%AAn-xung-k%C3%ADch-c%E1%BB%A7a-m%E1%BB%99t-tr%C6%B0%E1%BB%9Dng-ph%E1%BB%95-th%C3%B4ng-c%C3%B3-10-h%E1%BB%8Dc-sinh</guid>
<pubDate>Sat, 14 Oct 2023 15:38:45 +0000</pubDate>
</item>
<item>
<title>Tính xác suất để số đo chia hết cho 7</title>
<link>https://selfomy.com/hoidap/470601/t%C3%ADnh-x%C3%A1c-su%E1%BA%A5t-%C4%91%E1%BB%83-s%E1%BB%91-%C4%91o-chia-h%E1%BA%BFt-cho-7</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/470601/t%C3%ADnh-x%C3%A1c-su%E1%BA%A5t-%C4%91%E1%BB%83-s%E1%BB%91-%C4%91o-chia-h%E1%BA%BFt-cho-7</guid>
<pubDate>Sat, 02 Sep 2023 17:53:26 +0000</pubDate>
</item>
<item>
<title>Tìm giới hạn của hàm số</title>
<link>https://selfomy.com/hoidap/470529/t%C3%ACm-gi%E1%BB%9Bi-h%E1%BA%A1n-c%E1%BB%A7a-h%C3%A0m-s%E1%BB%91</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/470529/t%C3%ACm-gi%E1%BB%9Bi-h%E1%BA%A1n-c%E1%BB%A7a-h%C3%A0m-s%E1%BB%91</guid>
<pubDate>Wed, 30 Aug 2023 14:12:59 +0000</pubDate>
</item>
<item>
<title>xác định mặt phẳng và tìm giao điểm  chúng minh 3 đường thẳng thẳng hàng</title>
<link>https://selfomy.com/hoidap/470144/x%C3%A1c-%C4%91%E1%BB%8Bnh-m%E1%BA%B7t-ph%E1%BA%B3ng-giao-%C4%91i%E1%BB%83m-ch%C3%BAng-minh-%C4%91%C6%B0%E1%BB%9Dng-th%E1%BA%B3ng-th%E1%BA%B3ng-h%C3%A0ng</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/470144/x%C3%A1c-%C4%91%E1%BB%8Bnh-m%E1%BA%B7t-ph%E1%BA%B3ng-giao-%C4%91i%E1%BB%83m-ch%C3%BAng-minh-%C4%91%C6%B0%E1%BB%9Dng-th%E1%BA%B3ng-th%E1%BA%B3ng-h%C3%A0ng</guid>
<pubDate>Sun, 20 Aug 2023 00:43:30 +0000</pubDate>
</item>
<item>
<title>Đạo hàm là gì? Nêu các công thức của đạo hàm? Ý nghĩa của đạo hàm trong vật lý?</title>
<link>https://selfomy.com/hoidap/467655/%C4%91%E1%BA%A1o-h%C3%A0m-n%C3%AAu-c%C3%A1c-c%C3%B4ng-th%E1%BB%A9c-c%E1%BB%A7a-%C4%91%E1%BA%A1o-h%C3%A0m-ngh%C4%A9a-c%E1%BB%A7a-%C4%91%E1%BA%A1o-h%C3%A0m-trong-v%E1%BA%ADt</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/467655/%C4%91%E1%BA%A1o-h%C3%A0m-n%C3%AAu-c%C3%A1c-c%C3%B4ng-th%E1%BB%A9c-c%E1%BB%A7a-%C4%91%E1%BA%A1o-h%C3%A0m-ngh%C4%A9a-c%E1%BB%A7a-%C4%91%E1%BA%A1o-h%C3%A0m-trong-v%E1%BA%ADt</guid>
<pubDate>Fri, 30 Jun 2023 20:24:46 +0000</pubDate>
</item>
<item>
<title>Nêu định nghĩa giá trị cực đại, cực tiểu của một hàm số, cho ví dụ</title>
<link>https://selfomy.com/hoidap/467348/n%C3%AAu-%C4%91%E1%BB%8Bnh-ngh%C4%A9a-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%B1c-%C4%91%E1%BA%A1i-c%E1%BB%B1c-ti%E1%BB%83u-c%E1%BB%A7a-m%E1%BB%99t-h%C3%A0m-s%E1%BB%91-cho-v%C3%AD-d%E1%BB%A5</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/467348/n%C3%AAu-%C4%91%E1%BB%8Bnh-ngh%C4%A9a-gi%C3%A1-tr%E1%BB%8B-c%E1%BB%B1c-%C4%91%E1%BA%A1i-c%E1%BB%B1c-ti%E1%BB%83u-c%E1%BB%A7a-m%E1%BB%99t-h%C3%A0m-s%E1%BB%91-cho-v%C3%AD-d%E1%BB%A5</guid>
<pubDate>Wed, 21 Jun 2023 20:25:36 +0000</pubDate>
</item>
<item>
<title>Các bước xác định cực trị bằng phương pháp xét hàm số</title>
<link>https://selfomy.com/hoidap/467250/c%C3%A1c-b%C6%B0%E1%BB%9Bc-x%C3%A1c-%C4%91%E1%BB%8Bnh-c%E1%BB%B1c-tr%E1%BB%8B-b%E1%BA%B1ng-ph%C6%B0%C6%A1ng-ph%C3%A1p-x%C3%A9t-h%C3%A0m-s%E1%BB%91</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/467250/c%C3%A1c-b%C6%B0%E1%BB%9Bc-x%C3%A1c-%C4%91%E1%BB%8Bnh-c%E1%BB%B1c-tr%E1%BB%8B-b%E1%BA%B1ng-ph%C6%B0%C6%A1ng-ph%C3%A1p-x%C3%A9t-h%C3%A0m-s%E1%BB%91</guid>
<pubDate>Wed, 07 Jun 2023 09:50:11 +0000</pubDate>
</item>
<item>
<title>Các bước xác định tính đơn điệu của hàm số sử dụng phương pháp xét hàm số</title>
<link>https://selfomy.com/hoidap/467251/c%C3%A1c-b%C6%B0%E1%BB%9Bc-x%C3%A1c-%C4%91%E1%BB%8Bnh-t%C3%ADnh-%C4%91%C6%A1n-%C4%91i%E1%BB%87u-c%E1%BB%A7a-h%C3%A0m-d%E1%BB%A5ng-ph%C6%B0%C6%A1ng-ph%C3%A1p-x%C3%A9t-h%C3%A0m</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/467251/c%C3%A1c-b%C6%B0%E1%BB%9Bc-x%C3%A1c-%C4%91%E1%BB%8Bnh-t%C3%ADnh-%C4%91%C6%A1n-%C4%91i%E1%BB%87u-c%E1%BB%A7a-h%C3%A0m-d%E1%BB%A5ng-ph%C6%B0%C6%A1ng-ph%C3%A1p-x%C3%A9t-h%C3%A0m</guid>
<pubDate>Wed, 07 Jun 2023 09:50:05 +0000</pubDate>
</item>
<item>
<title>Toán học 11 - Đạo Hàm</title>
<link>https://selfomy.com/hoidap/466562/to%C3%A1n-h%E1%BB%8Dc-11-%C4%91%E1%BA%A1o-h%C3%A0m</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/466562/to%C3%A1n-h%E1%BB%8Dc-11-%C4%91%E1%BA%A1o-h%C3%A0m</guid>
<pubDate>Tue, 16 May 2023 20:57:02 +0000</pubDate>
</item>
<item>
<title>Toán Học 11 - Phương trình tiếp tuyến</title>
<link>https://selfomy.com/hoidap/466541/to%C3%A1n-h%E1%BB%8Dc-11-ph%C6%B0%C6%A1ng-tr%C3%ACnh-ti%E1%BA%BFp-tuy%E1%BA%BFn</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/466541/to%C3%A1n-h%E1%BB%8Dc-11-ph%C6%B0%C6%A1ng-tr%C3%ACnh-ti%E1%BA%BFp-tuy%E1%BA%BFn</guid>
<pubDate>Tue, 16 May 2023 17:03:18 +0000</pubDate>
</item>
<item>
<title>Điểm giữa kì 2Tiếng anh của mình đc 6,7 cuối kì được 6,1 có đc học sinh khá kh ạ :((</title>
<link>https://selfomy.com/hoidap/466530/%C4%91i%E1%BB%83m-gi%E1%BB%AFa-2ti%E1%BA%BFng-anh-c%E1%BB%A7a-m%C3%ACnh-cu%E1%BB%91i-k%C3%AC-%C4%91%C6%B0%E1%BB%A3c-c%C3%B3-%C4%91c-h%E1%BB%8Dc-sinh-kh%C3%A1-kh</link>
<category>Toán lớp 11</category>
<guid isPermaLink="true">https://selfomy.com/hoidap/466530/%C4%91i%E1%BB%83m-gi%E1%BB%AFa-2ti%E1%BA%BFng-anh-c%E1%BB%A7a-m%C3%ACnh-cu%E1%BB%91i-k%C3%AC-%C4%91%C6%B0%E1%BB%A3c-c%C3%B3-%C4%91c-h%E1%BB%8Dc-sinh-kh%C3%A1-kh</guid>
<pubDate>Tue, 16 May 2023 12:00:22 +0000</pubDate>
</item>
</channel>
</rss>