Question

If you consider two vectors a bar and b bar, is a bar + b bar equal to b bar + a bar? Please explain with examples

Answer 1

Explanation:

Two vectors A and B have equal magnitudes. If magnitude of A + B is equal to n times the magnitude of A - B, then the angle between A and B is . A. cos − 1 (n + 1 n − 1 ) B. cos − 1 (n 2 + 1 n 2 − 1 ) C. sin − 1 (n + 1 n − 1 ) D. sin − 1 (n 2 …