
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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part a and b. thank you

Transcribed Image Text:7. Let f be analytic in D = {|z| ≤ 1}. Assume that |ƒ(z)| ≤ 1 for |z| = 1. Show that
(a) |ƒ" (0)| ≤ 2, (b) |ƒ(") (½)| ≤ 8
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