Example-1. Express (1–2i)². " -in the form A+iB. Also find its modulas and (2+i)² argument.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Example-1. Express
(1–2i)².
Fin the form A+iB. Also find its modulas and
(2+i)?
argument.
Example-2. Find the real and imaginary parts of 1+cos 0 +i sin
and also find uts
1+cos Ø+i sin Ø
modulas.
Example-3. Find the modulas and argument of the following complex numbers
1-i
(ii)
-2
: (i)
1+iv3
1+i
Transcribed Image Text:Example-1. Express (1–2i)². Fin the form A+iB. Also find its modulas and (2+i)? argument. Example-2. Find the real and imaginary parts of 1+cos 0 +i sin and also find uts 1+cos Ø+i sin Ø modulas. Example-3. Find the modulas and argument of the following complex numbers 1-i (ii) -2 : (i) 1+iv3 1+i
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