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प्रश्न
The area of the parallelogram whose adjacent sides are `hat"i" + hat"k"` and `2hat"i" + hat"j" + hat"k"` is ______.
विकल्प
`sqrt(2)`
`sqrt(3)`
3
4
उत्तर
The area of the parallelogram whose adjacent sides are `hat"i" + hat"k"` and `2hat"i" + hat"j" + hat"k"` is `sqrt(3)`.
Explanation:
Area of the parallelogram whose adjacent sides are `vec"a"` and `vec"b"` is `|vec"a" xx vec"b"|`.
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