Find all zeros and periods of cosh z and sinh z Solution We have that cosh z cos iz thus the zeros of cosh z are at z in 2 imn m

Question

Find all zeros and periods of cosh z and sinh z Solution We have that cosh z cos iz thus the zeros of cosh z are at z in 2 imn m 0 11 12 and the periods of cosh z are 2 mi m 0 1 12 We have that sinh z i sin iz thus the zeros of sinh z are at z m 0 1 2 and the periods of cosh z are 27mi m 0 1 12 mai

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