In: Advanced Math
Let u and v be orthogonal vectors in R3 and let w = 3u + 6v. Suppose that ||u|| = 5 and ||v|| = 4. Find the cosine of the angle between w and v.
and are orthogonal vector of then we have
we have to find the angle between and
here
the angle between two vector
so we have to find out and
then we put the value and we got the angle between two vector