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Question

If A=3^i+^j and B=2^i then value of |A×B| will be

A
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B
2
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C
3
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D
4
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Solution

The correct option is B 2
|A×B|=|(3^i+^j)×(2^i)|
=|(3^i×2^i)+2(^j×^i)|
=|2(^k)|=2

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