Question

find the angle between the 2 vectors
u = <5cos30,5sin30> v=

Answer 1

It should just end up being the same as the angle between 30 and 240.

Answer 2

i know how to solve it , cause i implified to arccos=(rad3)/10 but would u use 150 or 210

Answer 3

i thought itt was 210 tgoo but the book syas 150

Answer 4

Oh, I get the problem. When it says the angle between the two vectors, it wants the smallest angle. Look at this picture:

Answer 5

\[\cos \theta= <u,v> \div ||v|| ||u||\]