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satellite73Best ResponseYou've already chosen the best response.1
poduct plus chain rule
 2 years ago

satellite73Best ResponseYou've already chosen the best response.1
\[(fg)'=f'g+g'f\] use \[f(x)=\sin9x), f'(x)=\cos(x), g(x)=\ln(5x), g'(x)=\frac{1}{x}\]
 2 years ago

siddhantsharanBest ResponseYou've already chosen the best response.0
cosxln5x + sinx/x
 2 years ago

satellite73Best ResponseYou've already chosen the best response.1
typo there \[f(x)=\sin(x)\]
 2 years ago

calyneBest ResponseYou've already chosen the best response.0
the function is f(x) = sin(x) * ln(5x)
 2 years ago

calyneBest ResponseYou've already chosen the best response.0
the derivative of ln(5x) is 5/x or 1/5x?
 2 years ago

siddhantsharanBest ResponseYou've already chosen the best response.0
None. Use chain rule = (1/5x)*5= 1/x
 2 years ago
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