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			<title>Giáº£i ToÃ¡n lá»›p 10 soanbaitap.com Báº¥t Ä‘áº³ng thá»©c</title>
			<link>https://www.nguoicham.com/forum/discussions-1/gi-7843i-to-225n-l-7899p-10-soanbaitap-com-b-7845t-273-7859ng-th-7913c/?post=719</link>
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&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;&lt;a style=&quot;text-decoration-line: underline; color: #000000;&quot; href=&quot;https://soanbaitap.com/giai-toan-10&quot;&gt;Giải To&aacute;n lớp 10&lt;/a&gt;&nbsp;giải b&agrave;i tập&nbsp;được soạn v&agrave; bi&ecirc;n tập bởi đội ngũ gi&aacute;o vi&ecirc;n gi&agrave;u kinh nghiệm giảng dạy m&ocirc;n to&aacute;n. Đảm bảo ch&iacute;nh x&aacute;c dễ hiểu gi&uacute;p c&aacute;c em nhanh ch&oacute;ng nắm được kiến thức trọng t&acirc;m trong b&agrave;i&lt;em&gt;&nbsp;bất đẳng thức lớp 10&nbsp;&lt;/em&gt;v&agrave; ứng dụng giải b&agrave;i tập sgk&nbsp;&lt;em&gt;to&aacute;n 10 bất đẳng thức&nbsp;&lt;/em&gt;để c&aacute;c em hiểu r&otilde; hơn.&lt;/p&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;I.&nbsp;&Ocirc;n tập l&yacute; thuyết bất đẳng thức lớp 10&lt;/p&gt;
&lt;h3 style=&quot;line-height: 40px; font-family: Arial, Helvetica, sans-serif; background-color: #f5f5ff;&quot;&gt;1. Kh&aacute;i niệm bất đẳng thức&lt;/h3&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;C&aacute;c mệnh đề dạng &ldquo;a &gt; b&rdquo; hoặc &ldquo;a &gt; b&rdquo; được gọi l&agrave; bất đẳng thức.&lt;/p&gt;
&lt;h3 style=&quot;line-height: 40px; font-family: Arial, Helvetica, sans-serif; background-color: #f5f5ff;&quot;&gt;2. Bất đẳng thức hệ quả v&agrave; bất đẳng thức tương đương&lt;/h3&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;Nếu mệnh đề &ldquo;a &gt; b =&gt; c &gt; d&rdquo; đ&uacute;ng th&igrave; ta n&oacute;i bất đẳng thức c &gt; d l&agrave; bất đẳng thức hệ quả của bất đẳng thức a &gt; b v&agrave; cũng viết l&agrave; a &gt; b =&gt; c &gt; d.&lt;/p&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;Nếu bất đẳng thức a &gt; b l&agrave; hệ quả của bất đẳng thức c &gt; d v&agrave; ngược lại th&igrave; ta n&oacute;i hai bất đẳng thức tương đương với nhau v&agrave; viết l&agrave; a &gt; b &lt;=&gt; c &gt; d.&lt;/p&gt;
&lt;h3 style=&quot;line-height: 40px; font-family: Arial, Helvetica, sans-serif; background-color: #f5f5ff;&quot;&gt;3. T&iacute;nh chất bất đẳng thức&lt;/h3&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;Như vậy để chứng minh bất đẳng thức a &gt; b ta chỉ cần chứng minh a &ndash; b &gt; 0. Tổng qu&aacute;t hơn, khi so s&aacute;nh hai số, hai biểu thức hoặc chứng minh một bất đẳng thức, ta c&oacute; thể sử dụng c&aacute;c t&iacute;nh chất của bất đẳng thức được t&oacute;m tắt trong bảng sau&lt;/p&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;&lt;img title=&quot;B&agrave;i 1. Bất đẳng thức 21&quot; src=&quot;https://soanbaitap.com/wp-content/uploads/2020/09/ly-thuyet-bat-dang-thuc_1601452480_1601452480.png&quot; alt=&quot;To&aacute;n lớp 10 | Chuy&ecirc;n đề: L&yacute; thuyết v&agrave; B&agrave;i tập To&aacute;n 10 c&oacute; đ&aacute;p &aacute;n&quot; width=&quot;480&quot; height=&quot;307.4074074074074&quot; /&gt;&lt;/p&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;Ch&uacute; &yacute;&lt;/p&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;Ta c&ograve;n gặp c&aacute;c mệnh đề dạng a &le; b hoặc a &ge; b. C&aacute;c mệnh đề dạng n&agrave;y cũng được gọi l&agrave; bất đẳng thức. Để ph&acirc;n biệt, ta gọi ch&uacute;ng l&agrave; c&aacute;c bất đẳng thức kh&ocirc;ng ngặt v&agrave; gọi c&aacute;c bất đẳng thức dạng a &lt; b hoặc a &gt; b l&agrave; c&aacute;c bất đẳng thức ngặt. C&aacute;c t&iacute;nh chất n&ecirc;u trong bảng tr&ecirc;n cũng đ&uacute;ng cho bất đẳng thức kh&ocirc;ng ngặt.&lt;/p&gt;
&lt;p style=&quot;color: #000000; font-family: Arial, Helvetica, sans-serif; font-size: 15px; background-color: #f5f5ff;&quot;&gt;&lt;a style=&quot;text-decoration-line: underline; color: #000000;&quot; href=&quot;https://soanbaitap.com/giai-toan-10&quot;&gt;https://soanbaitap.com/giai-toan-10&lt;/a&gt;&lt;/p&gt;
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			<pubDate>Tue, 27 Oct 2020 08:17:54 +0000</pubDate>
			<dc:creator>Van Minh Nguyen</dc:creator>
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