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Two vectors vec A and vec B are such tha...

Two vectors `vec A and vec B` are such that `vec A + vec B = vec A- vec B`, then

A

`vec(A).vec(B)= 0`

B

`vec(A) xx vec(B)= 0`

C

`vec(A)= 0`

D

`vec(B)= 0`

Text Solution

Verified by Experts

The correct Answer is:
D
`vec(A) + vec(B)= vec(A)- vec(B)`
i.e, `vec(B)= - vec(B)` only when B is null vector
`rArr vec(B)= 0`
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