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For two vectors A and B, |bar(A) + bar(B...

For two vectors A and B, `|bar(A) + bar(B)| = |bar(A) - bar(B)|` is always true when
(i) `|bar(A)| = |bar(B)| ne 0` (ii) `A bot B`
(iii) `|bar(A)| = |bar(B)| ne 0` and A and B are parallel or anti parallel
(iv) When either A or B is zero.

A

I and ii are true

B

ii, ii and iv are ture

C

I, ii and c are true

D

ii and iv are true

Text Solution

Verified by Experts

The correct Answer is:
D
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