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If veca, vecb,vec c are unit vectors suc...

If `veca, vecb,vec c` are unit vectors such that `veca+vecb+vec c=veco`, then the value of `veca*vecb+vecb*vec c+vec c*veca` is -

A

`-(3)/(2)`

B

`(3)/(2)`

C

3

D

-3

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The correct Answer is:
A
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 2
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