Question

How to find angle between components of vectors with tan?

Answer 1

Apply the equation theta = tan–1(y/x) to find the angle: tan–1(–7.0/–5.0) = 54 degrees. However, note that the angle must really be between 180 degrees and 270 degrees because both vector components are negative.

Answer 2

Answer:

theta = tan–1(y/x)

use this formulae

and then Pythagoras theorem

u will get the answer