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If veca and vecb are two vectors then th...

If `veca` and `vecb` are two vectors then the value of `(veca+vecb)xx(veca-vecb)` is

A

`2(vecb xx veca)`

B

`-2(vecb xx vec a )`

C

`vecb xx vec a`

D

`vec a xx vec b`

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The correct Answer is:
A
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