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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">B&#192;I T&#7852;P B&#192;I 1 CH&#431;&#416;NG II TO&#193;N 12<o:p></o:p>C&#226;u 1.&nbsp;Cho h&#236;nh h&#7897;p <img width="113" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/24255dd1d112fe085d27.png" >. Vect&#417; <img width="140" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/6dda55f0d2a73a6b0db6.png" >&nbsp;b&#7857;ng vect&#417; n&#224;o d&#432;&#7899;i &#273;&#226;y? A. <img width="31" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/a955848238329265e2dd.png" >. B. <img width="25" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/432ff4f85a1caed944ca.png" >. C. <img width="28" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/22b1f2210406e6034807.png" >. D. <img width="28" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/0fa53c454dceec1ad17e.png" >.<o:p></o:p>C&#226;u 2.&nbsp;Cho t&#7913; di&#7879;n <img width="48" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/17b9a1a7e55fe27506a3.png" >. Ch&#7913;ng minh r&#7857;ng: a) <img width="140" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/f23eaaabf8f30f52ad3e.png" > b) <img width="137" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/dc8351ba06ffe1d7599b.png" ><o:p></o:p>C&#226;u 3.&nbsp;Cho h&#236;nh l&#7853;p ph&#432;&#417;ng <img width="113" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/24255dd1d112fe085d27.png" >&nbsp;c&#243; c&#7841;nh b&#7857;ng <img width="13" height="15" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/7eca039253de8baef616.png" >. T&#237;nh: a) <img width="125" height="25" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/a811877762200940f9ce.png" >; b) C&#225;c g&#243;c <img width="152" height="32" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/3a35555dad9744b69830.png" >.<o:p></o:p>C&#226;u 4.&nbsp;Cho h&#236;nh h&#7897;p <img width="113" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/24255dd1d112fe085d27.png" >. G&#7885;i <img width="17" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/4c2c9d2b6c54867c8227.png" >&nbsp;l&#224; tr&#7885;ng t&#226;m tam gi&#225;c <img width="45" height="17" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/9aa41fea25c5ae3a7978.png" >. Ch&#7913;ng minh r&#7857;ng <img width="81" height="23" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/30fb7f3256f13b84d5e2.png" >.<o:p></o:p>C&#226;u 5.&nbsp;M&#7897;t chi&#7871;c &#244; t&#244; &#273;&#432;&#7907;c &#273;&#7863;t tr&#234;n m&#7863;t &#273;&#225;y d&#432;&#7899;i c&#7911;a m&#7897;t khung s&#7855;t c&#243; d&#7841;ng h&#236;nh h&#7897;p ch&#7919; nh&#7853;t v&#7899;i &#273;&#225;y tr&#234;n l&#224; h&#236;nh ch&#7919; nh&#7853;t <img width="48" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/17b9a1a7e55fe27506a3.png" >, m&#7863;t ph&#7859;ng <img width="60" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/1ad107725a4757c683b7.png" >&nbsp;song song v&#7899;i m&#7863;t ph&#7859;ng n&#7857;m ngang. Khung s&#7855;t &#273;&#243; &#273;&#432;&#7907;c bu&#7897;c v&#224;o m&#243;c <img width="16" height="17" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/99ff716d885308cb035c.png" >&nbsp;c&#7911;a chi&#7871;c c&#7847;n c&#7849;u sao cho c&#225;c &#273;o&#7841;n d&#226;y c&#225;p <img width="107" height="21" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/45d0cd51e929ef4154cc.png" >&nbsp;c&#243; &#273;&#7897; d&#224;i b&#7857;ng nhau v&#224; c&#249;ng t&#7841;o v&#7899;i m&#7863;t ph&#7859;ng <img width="60" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/1ad107725a4757c683b7.png" >&nbsp;m&#7897;t g&#243;c b&#7857;ng <img width="25" height="21" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/250aaeeac1a7d187e94e.png" >&nbsp;(H&#236;nh 16). Chi&#7871;c c&#7847;n c&#7849;u k&#233;o khung s&#7855;t l&#234;n theo ph&#432;&#417;ng th&#7859;ng &#273;&#7913;ng.<o:p></o:p>T&#237;nh tr&#7885;ng l&#432;&#7907;ng c&#7911;a chi&#7871;c xe &#244; t&#244; (l&#224;m tr&#242;n &#273;&#7871;n h&#224;ng &#273;&#417;n v&#7883;), bi&#7871;t r&#7857;ng c&#225;c l&#7921;c c&#259;ng <img width="60" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/2d4755e386b618fbf355.png" >, <img width="20" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/b44537fef6d2337f1bba.png" >&nbsp;&#273;&#7873;u c&#243; c&#432;&#7901;ng &#273;&#7897; l&#224; <img width="53" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/df27344d04da0aef7bcc.png" >&nbsp;v&#224; tr&#7885;ng l&#432;&#7907;ng c&#7911;a khung s&#7855;t l&#224; <img width="53" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/ff5bd7f683dc08956191.png" >.<o:p></o:p><img width="279" height="436" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-12/6643f1bb2a6936/html-preview-assets/26a760bd83718e14d107.png" ><o:p>&nbsp;</o:p>H&#236;nh 16<o:p></o:p></div></section>

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Tài liệu DOC Giải Toán 12 Bài 1 Chương 2 Vectơ Và Các Phép Toán Vectơ Trong Không Gian

Giải Toán 12 Bài 1 Chương 2 Vectơ Và Các Phép Toán Vectơ Trong Không Gian

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