B

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 \((-3,+\infty)\). \[ \int \frac{x^{2} - 9} {x + 3} \, \text{d}x \]
\(\frac{1} {2}x^{2} - 3x + c,\ c\in \mathbb{R}\)
\(\frac{1} {3}x^{3} - 9x +\ln |x + 3| + c,\ c\in \mathbb{R}\)
\(2x - x^{-2} + c,\ c\in \mathbb{R}\)
\(\frac{1} {2}x^{2} + 3x + c,\ c\in \mathbb{R}\)

9000066008

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

9000064110

Level: 
B
Identify a true statement related to the function \(f(x) = \frac{x-1} {x+1}\).
The tangent at \(T = [-3,2]\) is parallel to \(x - 2y + 1 = 0\).
The tangent at \(T = [-3,2]\) contains the point \(A = \left [1,-4\right ]\).
The slope of the tangent at \(T = [-3,2]\) is \(2\).
The tangent at \(T = [-3,2]\) is perpendicular to \(x + 2y + 1 = 0\).

9000065504

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