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Two vector vec(A) and vec(B) have equal ...

Two vector `vec(A)` and `vec(B)` have equal magnitudes. Then the vector `vec(A) + vec(B)` is perpendicular :

A

`AxxB`

B

`A-B`

C

`3A-3B`

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
A
`vec(A)xxvec(B)` is a vector perpendicular to plane `vec(A)+vec(B)` and hence perpendicular to `vec(A)+vec(B)`.
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