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Area of a parallelogram, whose diagonals...

Area of a parallelogram, whose diagonals are `3hati+hatj-2hatk` and `hati-3hatj+4hatk` will be :

A

14 unit

B

`5sqrt3` unit

C

`10sqrt3` unit

D

`20sqrt3` unit

Text Solution

Verified by Experts

The correct Answer is:
2
Area of parallelogram `= (1)/(2) |vecd_1 xx vecd_2|`
`vecd_1 and vecd_2` are diagonals.
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