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For vectors vecA and vecB, (vecA + vecB)...

For vectors `vecA` and `vecB`, `(vecA + vecB). (vecA xx vecB)` will be :

A

`A^(2)B^(2)`

B

`(A + B)(AB)`

C

zero

D

`sqrt(A^(2)+ B^(2) +AB)`

Text Solution

Verified by Experts

The correct Answer is:
C
`(vecA + vecB). (vecA xx vecB ) = vecA .(vecA xx vecB) + vecB. (vecA xx vecB)`
`=vecB. (vecA xx vecA) + vecA.(vecB xx vecB)=0`
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