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.document-html-preview--word div.Section0{page:Section0;}</style><div class="document-html-preview__page document-html-preview__page--word" data-page="1">PH&#431;&#416;NG PH&#193;P X&#201;T T&#205;NH &#272;&#416;N &#272;I&#7878;U C&#7910;A H&#192;M S&#7888; CHO B&#7902;I C&#212;NG TH&#7912;C<o:p></o:p>I. Ph&#432;&#417;ng ph&#225;p<o:p></o:p>B&#432;&#7899;c 1: T&#236;m t&#7853;p x&#225;c &#273;&#7883;nh <img width="17" height="17" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/48a9770eff09190ff32c.png" >.<o:p></o:p>B&#432;&#7899;c 2: T&#237;nh &#273;&#7841;o h&#224;m <img width="71" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/791a167c449ae11b0c91.png" >.<o:p></o:p>B&#432;&#7899;c 3: T&#236;m nghi&#7879;m c&#7911;a <img width="43" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/bf085dfefd79065fa9e6.png" >&nbsp;ho&#7863;c nh&#7919;ng gi&#225; tr&#7883; <img width="13" height="15" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/272d0c9324b85e6dbed7.png" >&nbsp;l&#224;m cho <img width="43" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/bf085dfefd79065fa9e6.png" >&nbsp;kh&#244;ng x&#225;c &#273;&#7883;nh.<o:p></o:p>B&#432;&#7899;c 4: L&#7853;p b&#7843;ng bi&#7871;n thi&#234;n.<o:p></o:p>B&#432;&#7899;c 5: K&#7871;t lu&#7853;n.<o:p></o:p>II. C&#225;c v&#237; d&#7909; minh h&#7885;a<o:p></o:p>V&#237; d&#7909; 1.&nbsp;X&#233;t t&#237;nh &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="99" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/e7ac1ebd57833f491db9.png" >.<o:p></o:p>V&#237; d&#7909; 2.&nbsp;T&#236;m c&#225;c kho&#7843;ng &#273;&#7891;ng bi&#7871;n, ngh&#7883;ch bi&#7871;n c&#7911;a h&#224;m s&#7889; <img width="100" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/521e6126353b65975616.png" >.<o:p></o:p>V&#237; d&#7909; 3.&nbsp;X&#233;t t&#237;nh &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="120" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/7f0e8342ee69e0de8bae.png" >.<o:p></o:p>V&#237; d&#7909; 4.&nbsp;T&#236;m c&#225;c kho&#7843;ng &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="81" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/131cdf021c563c1ec254.png" >.<o:p></o:p>V&#237; d&#7909; 5.&nbsp;T&#236;m c&#225;c kho&#7843;ng &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="64" height="41" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/472b08f57c87520c88cb.png" >.<o:p></o:p>V&#237; d&#7909; 6.&nbsp;T&#236;m c&#225;c kho&#7843;ng &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="68" height="41" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/7758d8156f8b2e3ee57a.png" >.<o:p></o:p>V&#237; d&#7909; 7.&nbsp;T&#236;m c&#225;c kho&#7843;ng ngh&#7883;ch bi&#7871;n c&#7911;a h&#224;m s&#7889;: <img width="100" height="44" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/cc4b2aee7de6514f1a54.png" >.<o:p></o:p>V&#237; d&#7909; 8.&nbsp;T&#236;m c&#225;c kho&#7843;ng ngh&#7883;ch bi&#7871;n c&#7911;a h&#224;m s&#7889;: <img width="107" height="44" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/1ffc44fa54c2dee640cb.png" >.<o:p></o:p>V&#237; d&#7909; 9.&nbsp;T&#236;m c&#225;c kho&#7843;ng &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="109" height="28" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/7a05d84bc2833504ba95.png" >.<o:p></o:p>V&#237; d&#7909; 10.&nbsp;T&#236;m c&#225;c kho&#7843;ng &#273;&#417;n &#273;i&#7879;u c&#7911;a h&#224;m s&#7889; <img width="88" height="28" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/440bf679030713/html-preview-assets/98983ff6e1d478c5c6cf.png" >.<o:p></o:p></div></section>

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Phương Pháp Xét Tính Đơn Điệu Của Hàm Số Cho Bởi Công Thức

DẠY 2 BÉ LỚP 10 VÀ LỚP 12 MÔN TOÁN

Phương Pháp Xét Tính Đơn Điệu Của Hàm Số Cho Bởi Công Thức

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