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Let veca=2hati+hatj-2hatk and vecb = hat...

Let `veca=2hati+hatj-2hatk` and `vecb = hati+hatj` Let `vecc` be a vector such that `|vecc-veca|=3,` `|(veca x vecb)xvecc|=3` and the angle between `vecc` and `veca x vecb` be `30^0`. Then `veca . vecc` is equatl to :

A

5

B

`-(1)/(8)`

C

`(25)/(8)`

D

2

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The correct Answer is:
D
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