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    Analytic functions

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    Using the Pythagorean theorem (see attached) and knowing the sinz and cosz are analytic functions. What can we say about (see attached)

    Show that cos(A+B)=cosAcosB-sinAsinB using exponential expressions for sin and cos

    What are the zeros of

    © BrainMass Inc. brainmass.com March 6, 2023, 1:26 pm ad1c9bdddf
    https://brainmass.com/math/basic-algebra/analytic-functions-zeros-23916

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    Please see the attachment.

    We note , . Then we have

    So we ...

    Solution Summary

    This shows how to use the Pythagorean theorem to work with trigonometric analytic functions.

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