Math, asked by sakshidudhal, 9 months ago

derivative of cos^5 9x

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Answered by amanchaudhri1994

1

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Answered by harmanshergill

0

derivative of cos^5 9x w.r.t x is

= 5 ( cos⁴9x ) d (cos9x))/dx

= 5 (cos⁴9x ) (-sin9x) d(9x) / dx

= 5 ( cos⁴9x) (-sin9x) (9)

= -45sin9xcos⁴9x

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