I just started physics this year and having a difficult time, lol.(adsbygoogle = window.adsbygoogle || []).push({});

anyways, my question is:

suppose I was given a vector A, and A has x, y, z components of 4,6,3

How would I find its magnitude of A and the cosines of the angles that makes B?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Direction cosines and vectors

**Physics Forums | Science Articles, Homework Help, Discussion**