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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

`5sqrt(3)` unit

C

`10sqrt(3)` unit

D

`20sqrt(3)` unit

Text Solution

Verified by Experts

The correct Answer is:
B
Area of parallelogram `=|hatd_(1)xxhatd_(2)|`
`hatd_(1)` and `hatd_(2)` are diagonals.
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ALLEN-BASIC MATHS-EXERCISE-2
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  2. A vector perpendicular to (4hati-3hatj) may be :

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  3. Area of a parallelogram, whose diagonals are 3hati+hatj-2hatk and hati...

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  4. If vecA=2hati+4hatj and vecB=6hati+8hatj and A and B are the magnitude...

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  14. Which of the following is incorrect statement?

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  16. A unitless quantity

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