Question

Find the angle between the given vectors to the nearest tenth of a degree.

u = <6, -1>, v = <7, -4>

20.3°
10.2°
0.2°
30.3°

Answer 1

I looked back into my lesson, I simply don't get how to convert this into degrees.

Answer 2

\[\cos \theta = \frac{ u \cdot v }{ ||u|| \times ||v|| }\]

Answer 3

Remember to take the arrcos though

Answer 4

The x is there just to multiply (to make it clear) it does NOT mean cross product

Answer 5

I got it thanks!

Answer 6

Np :)