derivative of sqrt(-x^2+4)

解答

\frac{d}{d x} (- x^{2} + 4)

- \frac{x}{- x ^{2} + 4}

求解步骤

\frac{d}{d x} (- x^{2} + 4)

使用连锁律:

\frac{1}{2 - x ^{2} + 4} \frac{d}{d x} (- x^{2} + 4)

= \frac{1}{2 - x ^{2} + 4} \frac{d}{d x} (- x^{2} + 4)

\frac{d}{d x} (- x^{2} + 4) = - 2 x

= \frac{1}{2 - x ^{2} + 4} (- 2 x)

化简

\frac{1}{2 - x ^{2} + 4} (- 2 x) : - \frac{x}{- x ^{2} + 4}

= - \frac{x}{- x ^{2} + 4}

d er i v a t i v e 4^{x} - 2^{x}

\frac{\partial}{\partial x} (2 x^{2} + 9 y^{2} + 3)

\frac{d x}{d t} - 4 x = cos (4 t)

s l o p e in t erce pt (- 3) (0.1)

f (t) = e^{t} sin (t)