Question:
Let f(z) be an analytic function, where z = x + iy. If the real part of f(z) is cosh x cos y, and the imaginary part of f(z) is zero for y = 0, then f(z) is
Let f(z) be an analytic function, where z = x + iy. If the real part of f(z) is cosh x cos y, and the imaginary part of f(z) is zero for y = 0, then f(z) is
Updated On: Jul 9, 2024
- cosh x exp (-iy)
- cosh z exp z
- cosh z cos y
- cosh z
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The Correct Option is D
Solution and Explanation
The correct option is (D): cosh z
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