Question

3.
If the magnitude of sum of two vectors is equal to
the magnitude of difference of the two vectors, the
angle between these vectors is [NEET-2016]
(1) 180°
(2) 0°
(3) 90°
(4) 45°​

Answer 1

Answer:3)90

PICK THE YOUR ANSWER FROM THE PHOTO AND HOW I EXPLAIN ABOUT THE O; AND ANOTHER TWO ALSO COME FROM THIS WAY