SOLVED:cosh(πi)=cos(i(πi))=cos(-π)=cosπ=-1
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SOLVED:cosh(πi)=cos(i(πi))=cos(-π)=cosπ=-1
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Solved 1. Graph exp(pi z). According to Euler's formula, we | Chegg.com
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Hyperbolic functions - Wikipedia
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cosh(pi)
Hyperbolic Trigonometric Functions | Brilliant Math & Science Wiki
