For any vector vecr, (vecr.hati) ^(2) + ...

For any vector `vecr, (vecr.hati) ^(2) + (vecr.hatj)^(2) + ( vecr.hatk)^(2) ` is equal to

A

`3r^2`

B

`r^2`

C

0

D

None of these

Text Solution

Verified by Experts

The correct Answer is:

B

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