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Mathematics 15 Online
OpenStudy (cherrilyn):

what is the derivative of sin5x?

OpenStudy (nowhereman):

Use the chain rule.

OpenStudy (anonymous):

deriv of sin x = cos x chain rule: deriv of 5x = 5, so 5cos x.

OpenStudy (cherrilyn):

thanks! okay so if that is true then why is the deriv. of cos2x-1 -2sin2x?

OpenStudy (anonymous):

what is the meaning of ( is typing a reply... )

OpenStudy (anonymous):

oh! im so sorry, its actually 5cos 5x. sorryy!!

OpenStudy (anonymous):

you keep the 5x there

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