Monday

March 2, 2015

March 2, 2015

Posted by **Hannah** on Wednesday, March 31, 2010 at 5:34pm.

v = 3i + j w = 2i - j

- pre-Cal(Please help) -
**Reiny**, Wednesday, March 31, 2010 at 5:45pmv•w = |v| |w|cos Ø

v•w = 6 - 1 = 5

5 = √10√5cosØ

cosØ = 5/√50

Ø = 45°

**Answer this Question**

**Related Questions**

Pre-Cal - Use the law of cosines to find the angle of Q between the given ...

Math - Use the law of cosines to find the angle Q between the given vectors. v...

Pre calculus - Why is it dangerous to use the law of sines to find an angle but ...

Pre-Calc Helppp!!! - Find the indicated angle è. (Use either the Law of Sines or...

Pre Cal/Vectors - Can someone show the steps involved in figuring out this type ...

Trig Help Please!!! - Find the indicated angle è. (Use either the Law of Sines ...

Trig - I need help with my vectors unit. I'm really confused about how to set ...

Trigonometry/Geometry - Law of sines and cosines - In most geometry courses, we ...

Physics - Two dogs pull horizontally on ropes attached to a post; the angle ...

Math - Trig - What familiar formula can you obtain when you use the third form ...