Area of a parallelogram, whose diagonals are `3hati+hatj-2hatk` and `hati-3hatj+4hatk` will be :
Area of a parallelogram, whose diagonals are `3hati+hatj-2hatk` and `hati-3hatj+4hatk` will be :
A. 14 unit
B. `5sqrt(3)` unit
C. `10sqrt(3)` unit
D. `20sqrt(3)` unit
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Correct Answer - B
Area of parallelogram `=|hatd_(1)xxhatd_(2)|`
`hatd_(1)` and `hatd_(2)` are diagonals.
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