Which of the following sets has oo in its interior: (a) {z = « + iy, x² < y} (b) {z € C, zz > 0} (c) {z = x + yi, |z +1| > 1, x < 0} (d) {z € C, z³ – 2z² + 5z – 4 = 0} %3D

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section: Chapter Questions
Problem 63RE
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[Complex Variables] How do you solve this?

Which of the following sets has ∞ in its interior:
(a) {z = « + iy, x² < y}
(b) {z € C, zz > 0}
(c) {z = x+ yi, |z +1| > 1, r < 0}
(d) {z € C, 2³ – 22² + 5z – 4 = 0}
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Transcribed Image Text:Which of the following sets has ∞ in its interior: (a) {z = « + iy, x² < y} (b) {z € C, zz > 0} (c) {z = x+ yi, |z +1| > 1, r < 0} (d) {z € C, 2³ – 22² + 5z – 4 = 0} |
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