Math, asked by tamanna4600, 10 months ago

find Re(z),lm(z) if z=(1+2i)(-2+I)

Answers

Answered by aadhiii

2

Step-by-step explanation:

z=(1+2i)(-2+i)

=-2+i-4i+2i²

=-2-2+i-4i. (i²=-1)

=-4-3i

Re(z)=-4

Im(z)=-3i

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