The area of the parallelogram whose adja...

The area of the parallelogram whose adjacent sides are determined by the vector `veca=hati-hatj+3hatk and vecb = 2hati -7hatj + hatk` is a) 15 sq, units b) `2sqrt(15)` sq. units c)`15sqrt(2)` sq. units d) None of these

A

15 sq, units

B

`2sqrt(15)` sq. units

C

`15sqrt(2)` sq. units

D

None of these

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The correct Answer is:

C

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