Tài liệu Tuyển Chọn Các Bài Toán Thực Tế Ứng Dụng Căn Bậc Hai Bậc Ba. Phân loại: Phổ thông > Toán > Lớp 9. Chủ đề: Toán, Toán 9. Có bản xem trước trang đầu dạng HTML và PDF để tham khảo nội dung.

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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">TUY&#7874;N T&#7852;P B&#192;I TO&#193;N TH&#7920;C T&#7870; <o:p></o:p>&#7912;NG D&#7908;NG C&#258;N B&#7852;C HAI, C&#258;N B&#7852;C BA<o:p></o:p>(C&#211; B&#192;I GI&#7842;I CHI TI&#7870;T)<o:p></o:p><o:p>&nbsp;</o:p>B&#224;i 1:&nbsp;Tr&#242; ch&#417;i “t&#236;m kho b&#225;u” l&#224; m&#7897;t tr&#242; ch&#417;i qu&#7889;c t&#7871;, r&#7845;t ph&#7893; bi&#7871;n trong sinh ho&#7841;t &#272;o&#224;n &#272;&#7897;i. Ai &#273;&#227; m&#7897;t l&#7847;n ch&#417;i s&#7869; c&#7843;m nh&#7853;n &#273;&#432;&#7907;c t&#237;nh th&#250; v&#7883;, h&#7845;p d&#7851;n v&#224; l&#244;i cu&#7889;n c&#7911;a n&#243;, nh&#7845;t l&#224; v&#7899;i c&#225;c b&#7841;n y&#234;u th&#237;ch kh&#225;m ph&#225;. Trong tr&#242; ch&#417;i b&#7841;n An ph&#7843;i gi&#7843;i b&#224;i to&#225;n c&#243; n&#7897;i dung sau: “S&#7889; &#273;&#7875; b&#7845;m v&#224;o kh&#243;a m&#7903; &#273;&#432;&#7907;c c&#7917;a kho b&#225;u b&#7857;ng gi&#225; tr&#7883; <img width="132" height="29" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/d59e709f5f1ac8/html-preview-assets/c32d6d3b2f551e7dd15f.png" >&nbsp;khi n = 10”. Em h&#227;y tr&#236;nh b&#224;y c&#225;ch t&#236;m ra s&#7889; &#273;&#7875; b&#7841;n An b&#7845;m v&#224;o &#7893; kh&#243;a s&#7889; m&#7903; c&#7917;a kho b&#225;u nh&#233;. <o:p></o:p><img width="351" height="197" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/d59e709f5f1ac8/html-preview-assets/da949558ab689df85784.png" ><o:p>&nbsp;</o:p><span style="mso-spacerun:'yes';font-family:'Times New Roman';mso-fareast-font-family:Calibri;
line-height:150%;color:rgb(255,0,0);mso-ansi-font-weight:bold;
text-decoration:underline;text-underline:single;font-size:13.0000pt" >B&#224;i gi&#7843;i:<span style="mso-spacerun:'yes';font-family:'Times New Roman';mso-fareast-font-family:Calibri;
line-height:150%;color:rgb(255,0,0);mso-ansi-font-weight:bold;
text-decoration:underline;text-underline:single;font-size:13.0000pt" ><o:p></o:p> &#119;&nbsp;Thay n = 10 v&#224;o c&#244;ng th&#7913;c <img width="132" height="29" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/d59e709f5f1ac8/html-preview-assets/c32d6d3b2f551e7dd15f.png" >, ta &#273;&#432;&#7907;c: <o:p></o:p> <img width="507" height="29" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/d59e709f5f1ac8/html-preview-assets/5f9c9ae7d1eb3c66f578.png" ><o:p></o:p> &#119;&nbsp;V&#7853;y s&#7889; &#273;&#7875; b&#7841;n An b&#7845;m v&#224;o &#7893; kh&#243;a s&#7889; m&#7903; c&#7917;a kho b&#225;u l&#224; 103 <o:p></o:p>B&#224;i 2:&nbsp;V&#7853;n t&#7889;c l&#259;n v (t&#237;nh b&#7857;ng m/s) c&#7911;a m&#7897;t v&#7853;t th&#7875; n&#7863;ng m (t&#237;nh b&#7857;ng kg) &#273;&#432;&#7907;c t&#225;c &#273;&#7897;ng m&#7897;t l&#7921;c Ek&nbsp;(g&#7885;i l&#224; n&#259;ng l&#432;&#7907;ng Kinetic Energy, k&#253; hi&#7879;u Ek, t&#237;nh b&#7857;ng <img width="39" height="19" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/d59e709f5f1ac8/html-preview-assets/b5b2027bbd7466b93507.png" >) &#273;&#432;&#7907;c cho b&#7903;i c&#244;ng th&#7913;c: <o:p></o:p></div></section>

Tuyển Chọn Các Bài Toán Thực Tế Ứng Dụng Căn Bậc Hai Bậc Ba

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