Question

110. If Ā.B bar=AB, then the angle between A bar and B bar is
(a) 0°
(b) 45°
(c) 90°
(d) 180°​

Answer 1

Answer:

a)0°

Explanation:

because

(A bar).(B bar)=ABcosx=AB×1

Thus,. cosx=1

x=0°

Answer 2

Answer:

answer is O⁰ I hope it helps you