If vec(a) = 2hat(i) +3 hat(j) +hat(k) , ...

If `vec(a) = 2hat(i) +3 hat(j) +hat(k) , vec(b) = 2hat(i) +phat(j) +3hat(k), vec(c ) = 2hat(i) +17 hat(j) -3hat(k)` are coplanar vectors then the value of p is :

A

`-4`

B

`-1`

C

4

D

`-2`

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The correct Answer is:

A

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