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OpenStudy (anonymous):
derivative of x(7sin3x + 2cos3x)
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OpenStudy (anonymous):
x(21cos3x+6cos3x)+(7sin3x+2cos3x)
OpenStudy (anonymous):
that's wrong! it supposed to be -6sin3x.... in the first part
OpenStudy (anonymous):
this whole question is wrong because i meant to put differentiate not derivative :/ my bad
OpenStudy (anonymous):
ha ha ha!! differentiate and derivative means the samething!!!!
OpenStudy (anonymous):
but the answer isn't the same? kay well i meant using the chain rule
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OpenStudy (anonymous):
the answer is x(21cos3x-6cos3x)+(7sin3x+2cos3x) an d that is using the chain rule
OpenStudy (anonymous):
oh alright thanks
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