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Given any vector, vecr,|vecr xx hati|^(2...

Given any vector, `vecr,|vecr xx hati|^(2) + |vecr xx hatj|^(2) + |vecr xx hatk|^(2)` equals to:

A

`4|vecr|^(2)`

B

`|vecr|^(2)`

C

`2|vecr|^(2)`

D

None of these

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The correct Answer is:
C
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