Question

The vector sum of two vectors A and B is maximum , then the angle (theta) between two vectors is​

Answer 1

Answer:

Let C=A+B

Let the angle between A and B is (theta)

So we know

Modulas of C is

$|c| = \sqrt{ {a}^{2} + {b}^{2} + 2ab \cos(theta) }$

Where |A| =a

|B| =b

This becomes maximum when cos(theta) becomes maximum.

The maximum value of cos(theta) =1

And that is for (theta) =0°

So the angle between the two vector is 0°