A

9000071205

Level: 
A
Evaluate the following integral on \(\mathbb{R}\). \[ \int \left (x^{2} + 2^{x}\right )\, \mathrm{d}x \]
\(\frac{x^{3}} {3} + \frac{2^{x}} {\ln 2} + c,\ c\in \mathbb{R}\)
\(\frac{x^{3}} {3} + \frac{2^{x+1}} {x+1} + c,\ c\in \mathbb{R}\)
\(2x + \frac{2^{x}} {\ln \left |x\right |} + c,\ c\in \mathbb{R}\)

9000070806

Level: 
A
Differentiate the following function. \[ f(x) = \frac{\pi } {x} +\ln 2 \]
\(f'(x) = - \frac{\pi }{x^{2}} ;\ x\in \mathbb{R}\setminus \{0\}\)
\(f'(x) = 0;\ x\in \mathbb{R}\setminus \{0\}\)
\(f'(x) =\pi ;\ x\in \mathbb{R}\setminus \{0\}\)
\(f'(x) = \frac{\pi } {x^{2}} ;\ x\in \mathbb{R}\setminus \{0\}\)

9000070101

Level: 
A
Find the algebraic form of the complex number: \[ \left (\cos \frac{\pi } {4} + \mathrm{i}\sin \frac{\pi } {4}\right )^{3} \]
\(-\frac{\sqrt{2}} {2} + \mathrm{i}\frac{\sqrt{2}} {2} \)
\(-\frac{\sqrt{2}} {2} -\mathrm{i}\frac{\sqrt{2}} {2} \)
\(\frac{\sqrt{2}} {2} -\mathrm{i}\frac{\sqrt{2}} {2} \)
\(\frac{\sqrt{2}} {2} + \mathrm{i}\frac{\sqrt{2}} {2} \)

9000065902

Level: 
A
Evaluate the following integral on the interval \((0;+\infty)\). \[ \int \left (2 + \frac{1} {x}\right )\, \text{d}x \]
\(2x +\ln |x| + c,\ c\in \mathbb{R}\)
\(\ln |x| + c,\ c\in \mathbb{R}\)
\(2 +\ln |x| + c,\ c\in \mathbb{R}\)
\(2x^{2} +\ln |x| + c,\ c\in \mathbb{R}\)