Using the definitions, prove: |sinh y| |cos z| cosh y, |sinh y| |sin z|
Question:
Using the definitions, prove:
|sinh y| ≤ |cos z| ≤ cosh y, |sinh y| ≤ |sin z| ≤ cosh y.
Conclude that the complex cosine and sine are not bounded in the whole complex plane.
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From 7a we obtain cos z 2 cos 2 x sinh 2 y cos 2 x ...View the full answer
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