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      <title>Nhóm 3 by Ho Dai Bao (FPL TN)</title>
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      <description>Được tạo với những rung cảm mãnh liệt</description>
      <language>en-us</language>
      <pubDate>2021-10-23 08:35:44 UTC</pubDate>
      <lastBuildDate>2023-03-25 23:05:52 UTC</lastBuildDate>
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         <title>II.BẤT ĐẲNG THỨC GIỮA TRUNG BÌNH CỘNG VÀ TRUNG BÌNH NHÂN ( BẤT ĐẲNG THỨC CÔ -SI)</title>
         <author>baohdtk00084</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837748676</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 08:41:34 UTC</pubDate>
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      <item>
         <title>2. Các hệ quả </title>
         <author>baohdtk00084</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837749313</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 08:42:34 UTC</pubDate>
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      <item>
         <title>Định lí</title>
         <author>phudttk00085</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837750732</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 08:44:51 UTC</pubDate>
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      <item>
         <title>Hệ quả 2</title>
         <author>baohdtk00084</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837755242</link>
         <description><![CDATA[<div>Nếu x, y cùng dương và có tổng không đổi thì tích xy lớn nhất khi và chỉ khi x = y</div>]]></description>
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         <pubDate>2021-10-23 08:51:43 UTC</pubDate>
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      <item>
         <title>Hệ quả 3</title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837755522</link>
         <description><![CDATA[<div>Nếu x, y cùng dương và có tích không đổi thì tổng x+ y nhỏ nhất khi và chỉ khi x= y</div>]]></description>
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         <pubDate>2021-10-23 08:52:04 UTC</pubDate>
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         <title>Chứng minh</title>
         <author></author>
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         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 08:52:11 UTC</pubDate>
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      <item>
         <title>Hệ quả 1</title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837757044</link>
         <description><![CDATA[<div>Tổng của một số dương với nghịch đảo của nó lớn hơn hoặc bằng 2.<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<br>&nbsp;</div>]]></description>
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         <pubDate>2021-10-23 08:54:11 UTC</pubDate>
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      <item>
         <title>1.Bất đẳng thức Cô-si</title>
         <author>baohdtk00084</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837762417</link>
         <description><![CDATA[<div><br><br></div>]]></description>
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         <pubDate>2021-10-23 09:01:23 UTC</pubDate>
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      <item>
         <title>xd</title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837768985</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:10:23 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837771944</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:14:29 UTC</pubDate>
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      <item>
         <title>Ý nghĩa hình học</title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837772134</link>
         <description><![CDATA[<div>Trong tất cả cá hình chứ nhật có cùng chu vi, hình vuông có diện tích lớn nhất</div>]]></description>
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         <pubDate>2021-10-23 09:14:47 UTC</pubDate>
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      <item>
         <title>Ý nghĩa hình học</title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837774604</link>
         <description><![CDATA[<div>trong tất cả hình chữ nhật có cùng diện tích, hình vuông có chu vi nhỏ nhất<br><br></div>]]></description>
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         <pubDate>2021-10-23 09:17:49 UTC</pubDate>
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      <item>
         <title></title>
         <author>quanghvtk00079</author>
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         <pubDate>2021-10-23 09:18:46 UTC</pubDate>
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      <item>
         <title></title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837777032</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:21:24 UTC</pubDate>
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      <item>
         <title></title>
         <author>quanghvtk00079</author>
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         <pubDate>2021-10-23 09:25:09 UTC</pubDate>
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      <item>
         <title></title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837781538</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:27:39 UTC</pubDate>
         <guid>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837781538</guid>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837784550</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:31:31 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837785288</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:32:33 UTC</pubDate>
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         <title></title>
         <author>quanghvtk00079</author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1837786422</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-10-23 09:34:05 UTC</pubDate>
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      <item>
         <title>Chứng minh. Đặt S= x+y. Áp dụng bất đẳng thức Cô-si ta có.    </title>
         <author></author>
         <link>https://padlet.com/baohdtk00084/l5tir88hcjsrdrm3/wish/1841061245</link>
         <description><![CDATA[<div>√xy=&lt; x+y/2 =S/2 l, do đó xy=&lt; S2/4.<br>Đẳng thức sảy ra khi và chỉ khi x=y=S/2<br>Vậy tích xy đạt giá trị lớn nhất bằng S2/4 khi và chỉ khi x=y=S/2.</div>]]></description>
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         <pubDate>2021-10-25 08:47:19 UTC</pubDate>
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