Question
Question: Angle between two vectors \((\widehat{i} + \widehat{j})\) and \((\widehat{i} - \widehat{j})\) is-...
Angle between two vectors (i+j) and (i−j) is-
A
(a) 300
A
(b) 600
A
(c) 450
A
(d) 900
Explanation
Solution
(d)
A.B=(i+j).(i−j) = 0
so A⊥B