Primitive function

1003027306

Level: 
B
Evaluate the following indefinite integral on \( \left(3;\infty \right) \). \[ \int\frac{x^2-5x+6}{x-3}\,\mathrm{d}x \]
\( \frac{x^2}2-2x+c\text{, }c\in\mathbb{R} \)
\( x-2+c\text{, }c\in\mathbb{R} \)
\( \frac{x^2}2+2x+c\text{, }c\in\mathbb{R} \)
\( \frac{x^2}2-x+c\text{, }c\in\mathbb{R} \)

1003027305

Level: 
B
Choose an incorrect evaluation of the following indefinite integral on \( (0;\infty) \). \[ \int\left(\sqrt{x}-1\right)\left(\sqrt{x}+1\right)\,\mathrm{d}x \]
\( x^2-2x+c\text{, }c\in\mathbb{R} \)
\( \frac{x^2}2-x+c\text{, }c\in\mathbb{R} \)
\( \frac{x^2-2x}2+c\text{, }c\in\mathbb{R} \)
\( \frac{x^4-4x^2}{2x(x+2)}+c\text{, }c\in\mathbb{R} \)

1003027304

Level: 
A
Choose a pair of functions, \( f_1 \) and \( f_2 \), that are antiderivatives of the same function on \( \mathbb{R} \).
\( f_1(x) = 3+\sin x\text{, }f_2(x)=\cos\left(\frac32\pi+x\right) \)
\( f_1(x) = 5+\sin x\text{, }f_2(x)=-\cos x \)
\( f_1(x) = \sin(x+\pi)\text{, }f_2(x)=\sin x \)
\( f_1(x) = \cos x\text{, }f_2(x)=-\cos x \)

1003027302

Level: 
B
Evaluate the following indefinite integral on \( \left(-\frac{\pi}2;\frac{\pi}2 \right) \). \[ \int \left(\frac1{\cos x}-\sin x\cdot\mathrm{tg}\,x\right)\,\mathrm{d}x \]
\( \sin x+c\text{, }c\in\mathbb{R} \)
\( \cos x+c\text{, }c\in\mathbb{R} \)
\( -\sin x+c\text{, }c\in\mathbb{R} \)
\( -\cos x+c\text{, }c\in\mathbb{R} \)

1003027301

Level: 
B
Evaluate the following indefinite integral on \( \left(0;\frac{\pi}2 \right) \). \[ \int\frac{(\sin x+\cos x)^2-1}{\sin x\cos x}\,\mathrm{d}x \]
\( 2x+c\text{, }c\in\mathbb{R} \)
\( x+c\text{, }c\in\mathbb{R} \)
\( \mathrm{tg}\,x+c\text{, }c\in\mathbb{R} \)
\( c\text{, }c\in\mathbb{R} \)

9000150305

Level: 
A
Evaluate the following integral on the interval \(\left(0;\frac{\pi}2\right)\). \[ \int \frac{8} {\cos ^{2}x}\, \text{d}x \]
\(8\mathop{\mathrm{tg}}\nolimits x + c,\ c\in \mathbb{R}\)
\(- 8\mathop{\mathrm{cotg}}\nolimits x + c,\ c\in \mathbb{R}\)
\(8\mathop{\mathrm{cotg}}\nolimits x + c,\ c\in \mathbb{R}\)
\(- 8\mathop{\mathrm{tg}}\nolimits x + c,\ c\in \mathbb{R}\)