derivative 4ln(x)

解答

导数

4 ln (x)

\frac{4}{x}

求解步骤

\frac{d}{d x} (4 ln (x))

将常数提出:

(a \cdot f)^{'} = a \cdot f^{'}

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

使用常见微分定则:

\frac{d}{d x} (ln (x)) = \frac{1}{x}

= 4 \cdot \frac{1}{x}

化简

4 \cdot \frac{1}{x} : \frac{4}{x}

= \frac{4}{x}

\frac{\partial}{\partial u} (u v - w)

t an g e n t 2 x^{2} + 3 x, at x = 1

d er i v a t i v e f (x) = 5 x - 3

n = 1 \sum \infty n^{(- \frac{1}{2})}

d er i v a t i v e 2 x + \frac{3}{x}