What's the imaginary part of z-2z, if z = a+ib ? %3D a. others O b. 3ab-b³+2b O c. ab-b3-26 d. 3a?b-2b e. 3ab-b3-4b O f. 3ab-b3 O g. 3ab+b³-2b O h. 3a'b-b³-2b

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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What's the imaginary part of z- 2z, if z = a+ib ?
%3D
a.
others
b. 3a b-b³+2b
c. ab-b³-2b
d. 3a b-2b
Oe.
3a'b-b3-4b
Of.
3a'b-b
O g.
3a b+b³-2b
h. 3ab-b³-2b
Transcribed Image Text:What's the imaginary part of z- 2z, if z = a+ib ? %3D a. others b. 3a b-b³+2b c. ab-b³-2b d. 3a b-2b Oe. 3a'b-b3-4b Of. 3a'b-b O g. 3a b+b³-2b h. 3ab-b³-2b
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