B

9000101903

Level: 
B
Given points \(A = [-1;0;3]\), \(B = [0;2;0]\), find the angle between the line \(AB\) and the line \(m\). \[ \begin{aligned}m\colon x& = 1 + 2t, & \\y & = -3t, \\z & = 1;\ t\in \mathbb{R} \\ \end{aligned} \] Round your answer to the nearest minute.
\(72^{\circ }45'\)
\(0^{\circ }\)
\(48^{\circ }15'\)
\(90^{\circ }\)

9000101910

Level: 
B
The points \(A = [0;5;0]\), \(B = [5;5;0]\), \(C = [5;0;0]\) and \(D = [0;0;0]\) define the cube \(ABCDEFGH\). Find the angle between the line \(BF\) and the plane \(AFE\). Round your answer to the nearest minute.
\(0^{\circ }\)
\(35^{\circ }16'\)
\(45^{\circ }\)
\(90^{\circ }\)

9000101908

Level: 
B
Find the angle between the line \(p\) and the plane \(\alpha \). \[ \alpha \colon x-3z+5 = 0;\qquad \qquad \begin{aligned}[t] p\colon x& = 3, & \\y & = 3t, \\z & = 1 - t;\ t\in \mathbb{R} \\ \end{aligned} \] Round your answer to the nearest minute.
\(17^{\circ }27'\)
\(0^{\circ }\)
\(47^{\circ }33'\)
\(90^{\circ }\)

9000101705

Level: 
B
Factor the following polynomial expression. \[ 16a^{2}b^{2} - 4a^{2}c^{2} - 16b^{2}d^{2} + 4c^{2}d^{2} \]
\(4\left (a - d\right )\left (a + d\right )\left (2b + c\right )\left (2b - c\right )\)
\(4\left (a + b\right )^{2}\left (2b + c\right )^{2}\)
\(4\left (a - b\right )\left (a + b\right )\left (2b + c\right )\left (2b - c\right )\)
\(4\left (a - c\right )\left (a + c\right )\left (2b + d\right )\left (2b - d\right )\)