Question

If Ā=B+C and the magnitudes of A, B and are 5,4 and 3 units respectively, the angle between A and Bis​

Answer 1

Answer:

If Ā= B + C, and the magnitude of A, B and are 5, 4 and 3 units respectively, the angle between A and C is (A) cos(3/5) (B) cos'(4/5) ( C) 7/2 ...