Now solved: Verifying an Identity In Exercises 714, verify the identity
Chapter 5, Problem 14(choose chapter or problem)
In Exercises 7-14, verify the identity.
\(\cosh x+\cosh y=2 \cosh \frac{x+y}{2} \cosh \frac{x-y}{2}\)
Text Transcription:
cosh x+cosh y=2 cosh frac x+y 2 cosh frac x-y 2
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