If veca and vecb are non colinear vector...

If `veca and vecb` are non colinear vectors, then the value of `alpha` for which the vectors `vecu=(alpha-2)veca+vecb and vecv=(2+3alpha)veca-3vecb` are collinear is (A) `3/2` (B) `2/3` (C) `(-3)/2` (D) `(-2)/3`

A

`3/2`

B

`2/3`

C

`-3/2`

D

`-2/3`

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The correct Answer is:

B

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