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OpenStudy (anonymous):
Let f(x)=7^[cos(2x)] Then f'(x)=
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OpenStudy (anonymous):
try changing to log base e (ln) then use chain rule...
OpenStudy (anonymous):
-sin2 ln 7*7^(cos(2x))
OpenStudy (anonymous):
|dw:1333329375075:dw| ok, I only carried out this far, you'll need to take the derivative of cos(2x) then solve for y'. don't forget the chain rule.
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