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Question

The value of 2+3i4+5i is


A

assd

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B

qw

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C

3 + 81i

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D

None of these

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Solution

The correct option is B

qw


Standardize the given expression by multiplying with 4 - 5i

2+3i4+5i.4āˆ’5i4āˆ’5i = 8āˆ’10i+12i+15(4)2āˆ’(5i)2
= 2i+2341


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