Using Rouché’s Theorem, show that the polynomial h(z) = 10z^4 + 12z^3 + 1 has three zeros with |z| < 1 and one zero with 1 < |z| < 2.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 47E
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Using Rouché’s Theorem, show that the polynomial h(z) = 10z^4 + 12z^3 + 1 has three zeros with |z| < 1 and one zero with 1 < |z| < 2.

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