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受欢迎的微积分 >

derivative of 2x^2-x^3

解答

\frac{d}{d x} (2 x^{2} - x^{3})

解答

4 x - 3 x^{2}

求解步骤

\frac{d}{d x} (2 x^{2} - x^{3})

使用微分加减法定则:

(f \pm g)^{'} = f^{'} \pm g^{'}

= \frac{d}{d x} (2 x^{2}) - \frac{d}{d x} (x^{3})

\frac{d}{d x} (2 x^{2}) = 4 x

\frac{d}{d x} (x^{3}) = 3 x^{2}

= 4 x - 3 x^{2}

作图

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