## anonymous one year ago Find the angle between the given vectors to the nearest tenth of a degree. u = <8, 4>, v = <9, -9>

1. anonymous

@pooja195

2. anonymous

@EmilyF03

3. anonymous

@jdoe0001

4. anonymous

@campbell_st

5. Loser66

YOu have a formula for this. Look up your notes and tell me what it is.

6. anonymous

i couldnt find it

7. Loser66

8. anonymous

$\cos \Theta = V \times W / \left| V \right| \left| W \right|$

9. anonymous

that? @Loser66

10. Loser66

Not really. It is $$cos (\theta) =\dfrac{<v, w>}{||v||*||w||}$$

11. Loser66

The numerator is "dot" product of v and w Hence, in your case , it is u and v. Now rewrite it, please.

12. anonymous

so the denominator would be 36?