9000107506 | math4u.vsb.cz

SubArea:

Level:

Project ID:

9000107506

Accepted:

1

Clonable:

0

Easy:

0

Find

\cos φ

where

φ

is the angle between the lines

p

and

q

.

p : y = 2 x - 11; q : y = \frac{1}{4} x

\frac{6 \sqrt{85}}{85}

\frac{1}{\sqrt{22}}

\frac{\sqrt{6}}{85}

\frac{\sqrt{17}}{30}