Derivative

9000063109

Level: 
B
Differentiate the following function. \[ f(x) = 3^{x}\cdot x^{3} \]
\(f'(x) = 3^{x}x^{2}(x\ln 3 + 3),\ x\in \mathbb{R}\)
\(f'(x) = 3^{x+1}x^{2}\ln 3,\ x\in \mathbb{R}\)
\(f'(x) = 3^{x}x^{2}(x + 3),\ x\in \mathbb{R}\)
\(f'(x) = 3^{x}x^{2}(x\ln x + 3),\ x\in \mathbb{R}^{+}\)

9000063110

Level: 
B
Differentiate the following function. \[ f(x) =\sin x(1 +\mathop{\mathrm{tg}}\nolimits x) \]
\(f'(x) =\cos x +\sin x + \frac{\sin x} {\cos ^{2}x},\ x\in \mathbb{R}\setminus\{\frac{\pi}{2}+k\pi; k\in \mathbb{Z}\}\)
\(f'(x) =\cos x +\sin x,\ x\in \mathbb{R}\setminus\{\frac{\pi}{2}+k\pi; k\in \mathbb{Z}\}\)
\(f'(x) = \frac{\sin x} {\cos ^{2}x},\ x\in \mathbb{R}\setminus\{\frac{\pi}{2}+k\pi; k\in \mathbb{Z}\}\)
\(f'(x) =\cos x + 2\sin x,\ x\in \mathbb{R}\setminus\{\frac{\pi}{2}+k\pi; k\in \mathbb{Z}\}\)

9000070701

Level: 
B
Differentiate the following function. \[ f(x)= (2x - 5)^{-6} \]
\(f^{\prime}(x) = - \frac{12} {(2x-5)^{7}} ;\ x\in \mathbb{R}\setminus \left \{\frac{5} {2}\right \}\)
\(f^{\prime}(x) = - \frac{12} {(2x-5)^{7}} ;\ x\in \mathbb{R}\)
\(f^{\prime}(x) = - \frac{12} {(2x-5)^{5}} ;\ x\in \mathbb{R}\setminus \left \{\frac{5} {2}\right \}\)
\(f^{\prime}(x) = - \frac{12} {(2x-5)^{5}} ;\ x\in \left (\frac{5} {2};\infty \right )\)

9000070702

Level: 
B
Differentiate the following function. \[ f(x) = (x^{2} - 3x + 2)^{\frac{1} {2} } \]
\(f^{\prime}(x) = \frac{2x-3} {2\sqrt{x^{2 } -3x+2}};\ x\in \mathbb{R}\setminus \left [ 1;2\right ] \)
\(f^{\prime}(x) = \frac{2x-3} {2\sqrt{x^{2 } -3x+2}};\ x\in \mathbb{R}\setminus \left (1;2\right )\)
\(f^{\prime}(x) = (4x - 6)\sqrt{x^{2 } - 3x + 2};\ x\in \mathbb{R}\setminus \left [ 1;2\right ] \)
\(f^{\prime}(x) = (4x - 6)\sqrt{x^{2 } - 3x + 2};\ x\in \mathbb{R}\setminus \left (1;2\right )\)

9000070703

Level: 
B
Differentiate the following function. \[ f(x)= \sqrt{\sin x -\cos x} \]
\(f^{\prime}(x) = \frac{\sin x+\cos x} {2\sqrt{\sin x-\cos x}};\ x\in \left ( \frac{\pi }{4} + 2k\pi ; \frac{5\pi } {4} + 2k\pi \right ),\ k\in \mathbb{Z}\)
\(f^{\prime}(x) = \frac{\sin x+\cos x} {2\sqrt{\sin x-\cos x}};\ x\in \left [ \frac{\pi }{4} + 2k\pi ; \frac{5\pi } {4} + 2k\pi \right ] ,\ k\in \mathbb{Z}\)
\(f^{\prime}(x) = \frac{\sin x-\cos x} {2\sqrt{\sin x-\cos x}};\ x\in \left [ \frac{\pi }{4} + 2k\pi ; \frac{5\pi } {4} + 2k\pi \right ] ,\ k\in \mathbb{Z}\)
\(f^{\prime}(x) = \frac{\sin x-\cos x} {2\sqrt{\sin x-\cos x}};\ x\in \left ( \frac{\pi }{4} + 2k\pi ; \frac{5\pi } {4} + 2k\pi \right ),\ k\in \mathbb{Z}\)

9000070704

Level: 
B
Differentiate the following function. \[ f(x) = \frac{1} {\cos x + 3x^{2}} \]
\(f^{\prime}(x) = \frac{\sin x-6x} {(3x^{2}+\cos x)^{2}} ;\ x\in \mathbb{R}\)
\(f^{\prime}(x) = \frac{6x-\sin x} {(3x^{2}+\cos x)^{2}} ;\ x\in \mathbb{R}\)
\(f^{\prime}(x) = \frac{\sin x-6x} {3x^{2}+\cos x};\ x\in \mathbb{R}\)
\(f^{\prime}(x) = \frac{6x-\sin x} {3x^{2}+\cos x};\ x\in \mathbb{R}\)

9000070705

Level: 
B
Differentiate the following function. \[ f(x) =\ln (2x^{2} + 5x) \]
\(f^{\prime}(x) = \frac{4x+5} {2x^{2}+5x};\ x\in \left (-\infty ;-\frac{5} {2}\right )\cup \left (0;\infty \right )\)
\(f^{\prime}(x) = \frac{4x+5} {2x^{2}+5x};\ x\in \mathbb{R}\setminus \left \{-\frac{5} {2};0\right \}\)
\(f^{\prime}(x) = \frac{1} {2x^{2}+5x};\ x\in \left (-\infty ;-\frac{5} {2}\right )\cup \left (0;\infty \right )\)
\(f^{\prime}(x) = \frac{1} {2x^{2}+5x};\ x\in \mathbb{R}\setminus \left \{-\frac{5} {2};0\right \}\)

9000070706

Level: 
B
Differentiate the following function. \[ f(x) = \sqrt{x^{2 } + 3x} \]
\(f^{\prime}(x) = \frac{2x+3} {2\sqrt{x^{2 } +3x}};\ x\in \left (-\infty ;-3\right )\cup \left (0;\infty \right )\)
\(f^{\prime}(x) = \frac{2x+3} {2\sqrt{x^{2 } +3x}};\ x\in \left (-\infty ;-3\right ] \cup \left [ 0;\infty \right )\)
\(f^{\prime}(x) = \frac{2x+3} {\sqrt{x^{2 } +3x}};\ x\in \left (-\infty ;-3\right )\cup \left (0;\infty \right )\)
\(f^{\prime}(x) = \frac{\sqrt{x^{2 } +3x}} {2x+3} ;\ x\in \left (-\infty ;-3\right ] \cup \left [ 0;\infty \right )\)