9000151302 | math4u.vsb.cz

SubArea:

Level:

Project ID:

9000151302

Accepted:

1

Clonable:

0

Easy:

0

Find the angle

φ

between the lines

p

and

q

given by their parametric equations.

p : \begin{aligned} x & = 1 + 2 t, \\ y & = 3 - 3 t; t \in R, \end{aligned} q : \begin{aligned} x & = 2 - k, \\ y & = 3 + k; k \in R \end{aligned}

11^{\circ} 19^{'}

88^{\circ} 41^{'}

45^{\circ} 45^{'}

54^{\circ} 12^{'}