Problem 1 Suppose f is holomorphic on C and f(z) is real valued for all z E C. Show that f must be constant. Problem 2 Use Problem 1 to show that if f(z) and f(z) are holomorphic then f must be constant. Hint: consider the functions f + f and ƒ – f.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Problem 1 Suppose f is holomorphic on C and f(z) is real valued for all z E C. Show that f must
be constant.
Problem 2 Use Problem 1 to show that if ƒ(z) and f(z) are holomorphic then f must be constant.
Hint: consider the functions f + f and f - f.
Prob
3 Use the definiti
Transcribed Image Text:Problem 1 Suppose f is holomorphic on C and f(z) is real valued for all z E C. Show that f must be constant. Problem 2 Use Problem 1 to show that if ƒ(z) and f(z) are holomorphic then f must be constant. Hint: consider the functions f + f and f - f. Prob 3 Use the definiti
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