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The number of roots of the equation z- 122 + 14 = 0 that lie in the %3D region {z e € : 2< |z| < ;} is (a) 2 (b) 3 (c) 4 (d) 5

The number of roots of the equation z- 122 + 14 = 0 that lie in the %3D region {z e € : 2< |z| < ;} is (a) 2 (b) 3 (c) 4 (d) 5

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The number of roots of the equation z - 122 + 14 = 0 that lie in the 5 region {z e C : 2<|z|<} is (a) 2 (b) 3 (c) 4 (d) 5
Transcribed Image Text:The number of roots of the equation z - 122 + 14 = 0 that lie in the 5 region {z e C : 2<|z|<} is (a) 2 (b) 3 (c) 4 (d) 5
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