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Mathematics 10 Online
OpenStudy (anonymous):

what is derivative of g(x)=4x^3 + cos(x)? @Loser66

OpenStudy (loser66):

just take derivative term by term

OpenStudy (anonymous):

how to do that? i mean 4x^3 ---> 12x^2 and what is cosx?

OpenStudy (loser66):

|dw:1426631596589:dw|

OpenStudy (loser66):

derivative of trigs go that way, that is (sin)' = cos (cos)' = -sin ......

OpenStudy (anonymous):

oh thank you. so then i just add them: 12x^2-sinx?

OpenStudy (loser66):

yup

OpenStudy (anonymous):

thank you very much!

OpenStudy (loser66):

:)

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