Complex numbers

  • Thread starter Anood
  • Start date
  • #1
14
0
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
 

Answers and Replies

  • #2
2,063
2
Use the polar form of 1-2i.
 

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