derivative 3x^2+4

解答

导数

3 x^{2} + 4

6 x

求解步骤

\frac{d}{d x} (3 x^{2} + 4)

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} (4)

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

\frac{d}{d x} (4) = 0

= 6 x + 0

化简

= 6 x

d er i v a t i v e \frac{1}{1 - x}

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

x \to 0 lim (\frac{cot ( 2 x )}{csc ( x )})

x \to 0 lim (\frac{( 6 ^{x} - 8 ^{x} )}{x})

\int cos (t) + sin (t) d t