(\partial)/(\partial x)(tan^2(x))

解答

\frac{\partial}{\partial x} (tan^{2} (x))

2 tan (x) sec^{2} (x)

求解步骤

\frac{\partial}{\partial x} (tan^{2} (x))

使用连锁律:

2 tan (x) \frac{\partial}{\partial x} (tan (x))

= 2 tan (x) \frac{\partial}{\partial x} (tan (x))

\frac{\partial}{\partial x} (tan (x)) = sec^{2} (x)

= 2 tan (x) sec^{2} (x)

d er i v a t i v e e^{- x} sin (x)

x \to \infty lim (\frac{4 x + 1}{12 x ^{2} - 7})

\int \frac{1}{y + 3} d y

t a y l or sin (x), 0.5

(3 x + y e^{\frac{y}{x}}) d x - x e^{\frac{y}{x}} d y = 0, y (1) = 6