Projection of vec(a) = 3overset(^^)(i) +...

Projection of `vec(a) = 3overset(^^)(i) + overset(^^)(j) + overset(^^)(k)` on `vec(b) = overset(^^)(i) - 2overset(^^)(j) + overset(^^)(K)` is :

A

`(2)/(sqrt(6))`

B

0

C

`(1)/(sqrt(6))`

D

`sqrt(6)`

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