Question

if the sum of two vector is maxmium, then the angles between them​

Answer 1

Answer:

For the sum of two vectors to be maximum, the angle between them should be 90°

Explanation:

Answer 2

Let the sun of the two vectors be the third vector R. R is maximum when cos (A, B) = +1; i.e. the angle between vectors A and B is 0°. ... = -1; i.e. the angle between vectors A and B is 180°.