derivative 2sin(θ)

解答

导数

2 sin (θ)

2 cos (θ)

求解步骤

\frac{d}{d θ} (2 sin (θ))

将常数提出:

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

= 2 \frac{d}{d θ} (sin (θ))

使用常见微分定则:

\frac{d}{d θ} (sin (θ)) = cos (θ)

= 2 cos (θ)

\frac{\partial}{\partial x} (x^{2} + 2 x y + 2 y^{2} - 8 x + 8 y)

\int_{1}^{\infty} \frac{1}{x ^{2} + 3} d x

d er i v a t i v e y = 3 1.6 x^{2} + 4.9

d er i v a t i v e f (t) = \frac{1}{2} (9 t^{2} + t)^{- 3}

x \to \infty lim (2 1^{x})