(\partial)/(\partial y)(sin^3(x^2y))

解答

\frac{\partial}{\partial y} (sin^{3} (x^{2} y))

3 x^{2} sin^{2} (x^{2} y) cos (x^{2} y)

求解步骤

\frac{\partial}{\partial y} (sin^{3} (x^{2} y))

将

x

视为常数

使用连锁律:

3 (sin (x^{2} y))^{2} \frac{\partial}{\partial y} (sin (x^{2} y))

= 3 (sin (x^{2} y))^{2} \frac{\partial}{\partial y} (sin (x^{2} y))

\frac{\partial}{\partial y} (sin (x^{2} y)) = cos (x^{2} y) x^{2}

= 3 (sin (x^{2} y))^{2} cos (x^{2} y) x^{2}

化简

= 3 x^{2} sin^{2} (x^{2} y) cos (x^{2} y)

\int_{- 1}^{1} (x^{2} + 1)^{2} d x

d er i v a t i v e y = e^{- \frac{1}{2} x}

d er i v a t i v e (2 x^{3} + 5 x) (x - 3) (x + 2)

\frac{d}{d x} (ln (y - x))

- x^{2} + 8 x - 9, (\frac{1}{2} x) + 1, x = 3, x = 5