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Question

If z=1(1i)(2+3i),, then |z| =


A

1

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B

126

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C

526

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D

none of these

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Solution

The correct option is B

126


Let z=1(1i)(2+3i) z=12+i3i2 z=12+i+3 z=15+i×5i5i z=5i25i2 z=5i25+1 z=5i26 z=526i26 |z|=25676+1676 z=126


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