Question
Asked Jan 24, 2020
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Show that

a. cosh iu = cos u,

b. sinh iu = i sin u.

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Expert Answer

Step 1

To show that

Calculus homework question answer, step 1, image 1
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Step 2

Note:

Calculus homework question answer, step 2, image 1
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Step 3

a. ...

Calculus homework question answer, step 3, image 1
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