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Complex numbers

by Anood
Tags: complex, numbers
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Anood
#1
Apr15-07, 08:36 AM
P: 14
How can i find The imaginary part of (1-2i)^2-i.

This is what i have done so far:
(1-2i)^2 (1-2i)^-i

=(1-4i+4)(1-2i)^-i
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neutrino
#2
Apr15-07, 09:17 AM
P: 2,047
Use the polar form of 1-2i.


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