Find |veca X vecb|,if veca=hati-7hatj+7h...

Find `|veca X vecb|`,if `veca=hati-7hatj+7hatk and vecb=3hati-2hatj+2hatk`

A

`7sqrt(2)`

B

`10sqrt(2)`

C

`19sqrt(2)`

D

`21sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:

C

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