If f(x) = (e^x)(cos(x)), find f '(x) and f "(x)
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If f(x) = (e^x)(cos(x)), find f '(x) and f "(x)

[From: ] [author: ] [Date: 11-10-24] [Hit: ]
......
just use multiplication rule
f'(x)=e^x(cosx-sinx)
f''(x)=-2 e^x sinx

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i would answer but its a pain to write down e^x and cosx so many times
especially when solving for f''(x)
1
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