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If vec a and vec b are two non -zero vec...

If `vec a` and `vec b` are two non -zero vectors, then `(vec a + vec b) .(vec a - vec b)` is equal to

A

`vec a + vec b`

B

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

C

`(vec a+ vec b)^(2)`

D

`(a^(2) - b^(2))`

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Verified by Experts

The correct Answer is:
D
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