mplex function f(z) = z(z-21) have a removable

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Complex Numbers
Section4.2: Complex Solutions Of Equations
Problem 7ECP: Find the cubic polynomial function f with real coefficients that has 1 and 2+i as zeros, and f2=2.
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A) Show that: the complex function f(z) :
=
at z = 2i.
Z¹ +4
z(z-21)
have a removable discontinuity
Transcribed Image Text:A) Show that: the complex function f(z) : = at z = 2i. Z¹ +4 z(z-21) have a removable discontinuity
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