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Question

Multiply the following and write the answer in standard form.
(2100)×(1+36)

A
62+2i
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B
6i
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C
16+3i
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D
none of these
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Solution

The correct option is B 62+2i
(2100)×(1+36)=(2i10)×(1+6i){i2=1}=2+12i10i60i2{i2=1}=62+2i


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