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数学
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f(x)=x^3-4x^2求导数
人气:124 ℃ 时间:2019-09-27 12:07:12
解答
f'(x)=3x^2-8x具体一点公式(x^n)'=n*x^(n-1)所以x^3n=3(x^3)'=3x^2同理x^2=2x所以f'(x)=3x^2-8x
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