Question

The angle between A+B and A-B will be
a. 900 b. between 0 and 1800 c.180 only d.None of these.

Answer 1

Explanation:

Resultant of vector A and B is maximum , when R 1= |A + B|

Here , we have maximum value of cos theta = 1

→Theta = 0

R will be minimum when , R2=|A-B|

Here , we have cos theta = -1

→theta = 180

Required answer = 180

Sorry , if I gave wrong answer