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6. Let i +22 B(2) 4- 2iz (a) Find the smallest positive real value M such that for every z on the closed unit disk D, B2)<M.

solve it ,i need urgent, no need to write neat and clean.. thanks!

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Answer #1

B(z) = a it22 4-c2z Cue have, Zit22 Z3+ za Iz11+1221 1231-1241 so (+22 4-izz s lil +21 El 141-1-21th 1+2 3 4-2 so M = 3. B (2

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