Question

If $|\vec{a} + \vec{b}| = |\vec{a} - \vec{b}|$ then angle between $\vec{a}\ \&\ \vec{b}$
(a) 45°
(b) 30°
(c) 90°
(d) 180°

Answer 1

hi friend

according to given situation my answer is option (C)90°