Find the four zeros of the polynomial z4 + 4, one of them being z0 = 2
Question:
z0 = √2 eiπ/4 = 1 + i.
Then use those zeros to factor z2 + 4 into quadratic factors with real coefficients.
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Related Book For
Complex Variables and Applications
ISBN: 978-0073051949
8th edition
Authors: James Brown, Ruel Churchill
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