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If y=cosx, find dy/d5x



please show workings
#thanks
9 years ago

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Steve
do you mean the 5th derivative?
d<sup><sup>5</sup></sup>y/dx<sup><sup>5</sup></sup>?

dy/d(5x) = 1/5 dy/dx
If that makes any sense.

start taking derivatives -- you will see a pattern.
9 years ago

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