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

Let `veca =2hati +hatj -2hatk and vecb = hati +hatj . " Let " vecc` be vector such that ` |vecc -veca|=3, |(veca xx vecb) xx vecc|=3` and the angle between `vecc and veca xx vecb " be " 30^(@)` Then , ` veca . Vecc` is equal to

A

2

B

5

C

`1/8`

D

`25/8`

Text Solution

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The correct Answer is:
A
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