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Mathematics 9 Online
OpenStudy (chris215):

Find f '(x) for f(x) = cos(x)tan(x)

OpenStudy (caozeyuan):

cos'tan+tan'cos

OpenStudy (caozeyuan):

cos'=-sin and tan'=sec^2

OpenStudy (caozeyuan):

I think that good enough

OpenStudy (daniel.ohearn1):

lastly, d(1st)*(2nd)+d(2nd)*(1st) You can use the product rule to get your final answer

OpenStudy (ac3):

you guys are overthinking this derivative

OpenStudy (ac3):

|dw:1448682260035:dw|

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