Bài 4: Nhị thức Newton
<span data-v-a7c68f28="">Hướng dẫn Giải Hoạt động (Trang 18 SGK Toán 10, Bộ Cánh diều, Tập 2)</span>
<p><strong>Hoạt động (Trang 18 SGK To&aacute;n 10, Bộ C&aacute;nh diều, Tập 2)</strong></p> <p><img class="wscnph" style="max-width: 100%;" src="https://static.colearn.vn:8413/v1.0/upload/library/11112022/imade-4-hGT12r.png" width="815" height="252" /></p> <p>&nbsp;</p> <p><em><span style="text-decoration: underline;"><strong>Hướng dẫn giải</strong></span></em></p> <p>a) Ta c&oacute;:&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi>C</mi><mn>3</mn><mn>0</mn></msubsup><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>1</mn><mo>,</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>1</mn></msubsup><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>3</mn><mo>,</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>2</mn></msubsup><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>3</mn><mo>,</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>3</mn></msubsup><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><mn>1</mn></math></p> <p>b) Ta c&oacute;:&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mrow><mo>(</mo><mi>a</mi><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mi>b</mi><mo>)</mo></mrow><mn>3</mn></msup><mo>&#160;</mo><mo>=</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>0</mn></msubsup><mo>.</mo><msup><mi>a</mi><mn>3</mn></msup><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>1</mn></msubsup><mo>.</mo><msup><mi>a</mi><mrow><mn>3</mn><mo>&#160;</mo><mo>-</mo><mo>&#160;</mo><mn>1</mn></mrow></msup><mo>.</mo><msup><mi>b</mi><mn>1</mn></msup><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>2</mn></msubsup><mo>.</mo><msup><mi>a</mi><mrow><mn>3</mn><mo>-</mo><mn>2</mn></mrow></msup><mo>.</mo><msup><mi>b</mi><mn>2</mn></msup><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><msubsup><mi>C</mi><mn>3</mn><mn>3</mn></msubsup><mo>.</mo><msup><mi>b</mi><mn>3</mn></msup></math></p>
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