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Question

The area of the parallelogram represented by the vectors A=2^i+3^j and B=^i+4^j is

A
14 sq.units
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B
7.5 sq.units
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C
10 sq.units
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D
5 sq.units
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Solution

The correct option is D 5 sq.units
Area of a parallelogram is given by,
|A×B|=|(2^i+3^j)×(^i+4^j)|=|5^k| =5 sq.units

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