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The angle between the vector vec(A) and ...

The angle between the vector `vec(A)` and `vec(B)` is `theta`. Find the value of triple product `vec(A).(vec(B)xxvec(A))`.

A

`A^(2)B`

B

zero

C

`A^(2)sintheta`

D

`A^(2)Bcos theta`

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The correct Answer is:
b
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