Primitive function

2010008110

Level: 
B
Evaluate the following integral on the interval \(\left(0;\frac{\pi}{2}\right)\). \[ \int \left(\cos 2x+ \frac{1}{\sin^2 2x}-\frac{1}{2x} \right) \mathrm{d}x \]
\( \frac12\left(\sin 2x- \mathrm{cotg}\, 2x-\ln x \right) +c;~c \in \mathbb{R}\)
\( \frac12\left( \sin 2x- \mathrm{cotg }\, 2x -\ln 2x\right)+c;~c \in \mathbb{R}\)
\( \sin 2x- \mathrm{cotg }\, 2x - \ln 2x +c;~c \in \mathbb{R}\)
\( \sin 2x+ \mathrm{cotg }\, 2x +\ln 2x +c;~c \in \mathbb{R}\)

9000065504

Level: 
B
Evaluate the following integral on the interval \((0;+\infty)\). \[ \int (1 -\sqrt{x})(1 + \sqrt{x})\, \mathrm{d}x \]
\(x -\frac{1} {2}x^{2} + c,\ c\in \mathbb{R}\)
\((x -\frac{1} {2}x^{2})(x + \frac{1} {2}x^{2}) + c,\ c\in \mathbb{R}\)
\(x -\frac{1} {2}x^{\frac{1} {2} } + c,\ c\in \mathbb{R}\)
\((x -\frac{1} {2}x^{-\frac{1} {2} })(x + \frac{1} {2}x^{-\frac{1} {2} }) + c,\ c\in \mathbb{R}\)

9000065505

Level: 
B
Evaluate the following integral on \(\mathbb{R}\). \[ \int (x^{2} + 3)(x^{2} - 1)\, \mathrm{d}x \]
\(\frac{1} {5}x^{5} + \frac{2} {3}x^{3} - 3x + c,\ c\in \mathbb{R}\)
\((\frac{1} {3}x^{3} + 3x)(\frac{1} {3}x^{3} - x) + c,\ c\in \mathbb{R}\)
\(4x^{2} + c,\ c\in \mathbb{R}\)
\(4x^{3} + 4x + c,\ c\in \mathbb{R}\)

9000065506

Level: 
B
Evaluate the following integral on the interval \((0;+\infty)\). \[ \int \frac{x^{2}} {\sqrt{x}}\, \mathrm{d}x \]
\(\frac{2} {5}x^{2}\sqrt{x} + c,\ c\in \mathbb{R}\)
\(\frac{2\sqrt{x}} {x} + c,\ c\in \mathbb{R}\)
\(\frac{2} {5}x\sqrt{x} + c,\ c\in \mathbb{R}\)
\(\frac{\sqrt{x}} {x} + c,\ c\in \mathbb{R}\)

9000065901

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

9000065903

Level: 
B
Evaluate the following integral on the interval \((-6;+\infty)\). \[ \int \frac{1} {6x + 36}\, \text{d}x \]
\(\frac{1} {6}\ln |x + 6| + c,\ c\in \mathbb{R}\)
\(-\frac{1} {2}(6x + 36)^{-2} + c,\ c\in \mathbb{R}\)
\(6\ln |x + 6| + c,\ c\in \mathbb{R}\)
\(12x^{2} + 36x + c,\ c\in \mathbb{R}\)

9000065904

Level: 
B
Evaluate the following integral on the interval \((0;+\infty)\). \[ \int \frac{x^{3} + 2x} {x^{2}} \, \text{d}x \]
\(\frac{1} {2}x^{2} + 2\ln |x| + c,\ c\in \mathbb{R}\)
\(x +\ln |x| + c,\ c\in \mathbb{R}\)
\(\frac{1} {4}x^{4} + 4x^{2} +\ln |x^{2}| + c,\ c\in \mathbb{R}\)
\(2x^{2} + 2 +\ln |x^{2}| + c,\ c\in \mathbb{R}\)

9000065905

Level: 
B
Evaluate the following integral on the interval \((0;+\infty)\). \[ \int \frac{\left (\sqrt{x} + 2\right )^{2}} {x} \, \text{d}x \]
\(x + 8\sqrt{x} + 4\ln |x| + c,\ c\in \mathbb{R}\)
\(\sqrt{x} + 8x + 4\ln |x| + c,\ c\in \mathbb{R}\)
\(\frac{1} {2}x^{-\frac{1} {2} } + 2x +\ln |x| + c,\ c\in \mathbb{R}\)
\(1 + 8\sqrt{x} + 4\ln |x| + c,\ c\in \mathbb{R}\)

9000065906

Level: 
B
Evaluate the following integral on the interval \((-3;+\infty)\). \[ \int \frac{x^{2} - 9} {x + 3} \, \text{d}x \]
\(\frac{1} {2}x^{2} - 3x + c,\ c\in \mathbb{R}\)
\(\frac{1} {3}x^{3} - 9x +\ln |x + 3| + c,\ c\in \mathbb{R}\)
\(2x - x^{-2} + c,\ c\in \mathbb{R}\)
\(\frac{1} {2}x^{2} + 3x + c,\ c\in \mathbb{R}\)

9000065907

Level: 
B
Evaluate the following integral on \(\mathbb{R}\). \[ \int \frac{x^{4} - 1} {x^{2} + 1}\, \text{d}x \]
\(\frac{1} {3}x^{3} - x + c,\ c\in \mathbb{R}\)
\(\frac{1} {3}x^{3} + x + c,\ c\in \mathbb{R}\)
\(\frac{1} {5}x^{5} - x +\ln |x^{2} - 1| + c,\ c\in \mathbb{R}\)
\(3x^{2} -\ln |x^{2} - 1| + c,\ c\in \mathbb{R}\)