derivative ln(9x)

解答

导数

ln (9 x)

\frac{1}{x}

求解步骤

\frac{d}{d x} (ln (9 x))

使用连锁律:

\frac{1}{9 x} \frac{d}{d x} (9 x)

= \frac{1}{9 x} \frac{d}{d x} (9 x)

\frac{d}{d x} (9 x) = 9

= \frac{1}{9 x} \cdot 9

化简

\frac{1}{9 x} \cdot 9 : \frac{1}{x}

= \frac{1}{x}

d er i v a t i v e f (x) = 2 x^{3} - 3 x^{2} - 72 x + 108

\int (csc^{2} (t) - 2 e^{t}) d t

\frac{d}{d x} (ln (- 5 x + 2 x^{- 2}))

\frac{d}{d x} (x e^{x^{2} - y})

d er i v a t i v e (1 + t) (2 t^{2} - 7)