derivative 3x^2-2x

解答

导数

3 x^{2} - 2 x

6 x - 2

求解步骤

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

使用微分加减法定则:

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

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

\frac{d}{d x} (3 x^{2}) = 6 x

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

= 6 x - 2

d er i v a t i v e 7 (4^{x})

x \to - 5 - lim (\frac{1}{x ^{2} - 25})

\frac{d}{d t} (\frac{5 t}{1 + 2 t ^{2}})

\frac{d y}{d t} = \frac{1}{( y + 1 ) ( t - 2 )}, y (0) = 0

\int cos (5 x) cos (10 x) d x