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If veca , vecb , vec c are any three co...

If `veca , vecb , vec c ` are any three coplanar unit vectors , then :

A

`oversettoa.(oversettobxxoversettoc)=1`

B

`oversettoa.(oversettobxxoversettoc)=3`

C

`(oversettoaxxoversettob).oversettoc=1`

D

`(oversettocxxoversettoa).oversettob=1`

Text Solution

Verified by Experts

The correct Answer is:
C
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