9000063304
Level:
C
Differentiate the following function.
\[
f(x) =\ln \sqrt{x}
\]
\(f'(x) = \frac{1}
{2x},\ x > 0\)
\(f'(x) = \frac{1}
{2x},\ x\neq 0\)
\(f'(x) = \frac{1}
{x},\ x > 0\)
\(f'(x) = \frac{1}
{x},\ x\neq 0\)
Derivative
9000063305
Level:
C
Differentiate the following function.
\[
f(x) = \sqrt{\frac{x - 1}
{x + 1}}
\]
\(f'(x) = \frac{1}
{(x+1)^{2}} \sqrt{\frac{x+1}
{x-1}},\ x\in (-\infty ;-1)\cup (1;\infty )\)
\(f'(x) = \frac{\sqrt{x-1}}
{(x-1)^{2}\sqrt{x+1}},\ x\in (-\infty ;-1)\cup [ 1;\infty )\)
\(f'(x) = \frac{x-1}
{2\sqrt{(x+1)^{3}}} ,\ x\neq - 1\)
\(f'(x) = \frac{x-1}
{\sqrt{(x+1)^{3}}} ,\ x\in (-\infty ;-1)\cup [ 1;\infty )\)
9000063306
Level:
C
Differentiate the following function.
\[
f(x) =\mathrm{e} ^{\sin 2x}
\]
\(f'(x) = 2\mathrm{e}^{\sin 2x}\cos 2x,\ x\in \mathbb{R}\)
\(f'(x) = x\mathrm{e}^{\sin 2x}\cos 2x,\ x\in \mathbb{R}\)
\(f'(x) =\mathrm{e} ^{\sin 2x}\sin 2x,\ x\in \mathbb{R}\)
\(f'(x) =\mathrm{e} ^{\cos 2x},\ x\in \mathbb{R}\)
9000063101
Level:
B
Differentiate the following function.
\[
f(x) = \frac{x^{2} - 1}
{x^{2} + 1}
\]
\(f'(x) = \frac{4x}
{(x^{2}+1)^{2}} ,\ x\in \mathbb{R}\)
\(f'(x) = \frac{-4x}
{x^{2}+1},\ x\in \mathbb{R}\)
\(f'(x) = \frac{4x^{3}}
{(x^{2}+1)^{2}} ,\ x\in \mathbb{R}\)
\(f'(x) = \frac{4x}
{x^{2}+1},\ x\in \mathbb{R}\)
9000063103
Level:
B
Differentiate the following function.
\[
f(x) = \frac{x^{2} - x}
{x + 1}
\]
\(f'(x) = \frac{x^{2}+2x-1}
{(x+1)^{2}} ,\ x\neq - 1\)
\(f'(x) = 2x - 1,\ x\neq - 1\)
\(f'(x) = \frac{x^{2}+2x-1}
{(x+1)^{2}} ,\ x\neq 0\)
\(f'(x) = \frac{2x}
{(x^{2}+1)^{2}} ,\ x\neq 0\)
9000063104
Level:
B
Differentiate the following function.
\[
f(x)= \frac{\sin x}
{\sin x -\cos x}
\]
\(f'(x) = \frac{-1}
{(\sin x-\cos x)^{2}} ,\ x\neq \frac{\pi }{4} + k\pi ;k\in \mathbb{Z}\)
\(f'(x) = \frac{\sin ^{2}x-\cos ^{2}x}
{(\sin x-\cos x)^{2}} ,\ x\neq \frac{\pi }{4} + k\pi ;k\in \mathbb{Z}\)
\(f'(x) = \frac{\sin x(\cos x+1)}
{(\sin x-\cos x)^{2}} ,\ x\neq \frac{\pi }{4} + k\pi ;k\in \mathbb{Z}\)
\(f'(x) = \frac{\cos ^{2}x-\sin ^{2}x}
{(\sin x-\cos x)^{2}} ,\ x\neq \frac{\pi }{4} + k\pi ;k\in \mathbb{Z}\)
9000063106
Level:
B
Differentiate the following function.
\[
f(x) =\sin x\cos x
\]
\(f'(x) =\cos 2x,\ x\in \mathbb{R}\)
\(f'(x) = 1,\ x\in \mathbb{R}\)
\(f'(x) = -\cos 2x,\ x\in \mathbb{R}\)
\(f'(x) = -\sin x\cos x,\ x\in \mathbb{R}\)
9000063107
Level:
B
Differentiate the following function.
\[
f(x) =\cos x(1 +\sin x)
\]
\(f'(x) =\cos ^{2}x -\sin ^{2}x -\sin x,\ x\in \mathbb{R}\)
\(f'(x) = -\sin x\cos x,\ x\in \mathbb{R}\)
\(f'(x) =\cos x,\ x\in \mathbb{R}\)
\(f'(x) =\sin x +\sin ^{2}x -\cos ^{2}x,\ x\in \mathbb{R}\)
9000063109
Level:
B
Differentiate the following function.
\[
f(x) = 3^{x}\cdot x^{3}
\]
\(f'(x) = 3^{x}x^{2}(x\ln 3 + 3),\ x\in \mathbb{R}\)
\(f'(x) = 3^{x+1}x^{2}\ln 3,\ x\in \mathbb{R}\)
\(f'(x) = 3^{x}x^{2}(x + 3),\ x\in \mathbb{R}\)
\(f'(x) = 3^{x}x^{2}(x\ln x + 3),\ x\in \mathbb{R}^{+}\)
9000063108
Level:
B
Differentiate the following function.
\[
f(x) = x^{5}\mathrm{e}^{x}
\]
\(f'(x) = x^{4}\mathrm{e}^{x}(5 + x),\ x\in \mathbb{R}\)
\(f'(x) = 5x^{4}\mathrm{e}^{x},\ x\in \mathbb{R}\)
\(f'(x) = x^{4}\mathrm{e}^{x}(x - 5),\ x\in \mathbb{R}\)
\(f'(x) = x^{4}\mathrm{e}^{x}(5 + x^{2}),\ x\in \mathbb{R}\)