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If vec(A)andvec(B) are two vectors then ...

If `vec(A)andvec(B)` are two vectors then `(vec(A)+vec(B))xx(vec(A)-vec(B))` is

A

`2(vec(b) xx vec(a))`

B

`-2(vec(b) xx vec(a))`

C

`(vec(b) xx vec(a))`

D

`vec(a) xx vec(b)`

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The correct Answer is:
A
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