Question

If |A+B|=|A+B| ,then angle between A and B will be

Answer 1

Answer:

Given that,

|A+B|=|A-B|

Squaring on the both sides....

|A+B|²=|A-B|²

A²+B²+2(A.B)=A²+B²-2(A.B)

4(A.B)=0

(A.B)=0

Explanation:

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