Determine the angle measure between vectors u and v: u = – 3i + 3j and v = 3i + 2j

Question

Determine the angle measure between vectors u and v: u = – 3i + 3j and v = 3i + 2j

Answer 1

You should have the formula that gives the cosine of the angle between vectors: numerator is DOT PRODUCT, denominator is the product of their respective magnitudes.

 

Then just do "inverse cosine" of that computed result (making sure that the MODE of the computer is degrees, if you want degrees, which is usually the desired form of answer.