# Find the derivative of y=3 sinx+ 4 cosx

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### 1 Answer

`y=3sinx+4cosx=>`

`y'=3*(cosx)+4*(-sinx)=>`

`y'=3cosx-4sinx`

*print*Print*list*Cite

`y=3sinx+4cosx=>`

`y'=3*(cosx)+4*(-sinx)=>`

`y'=3cosx-4sinx`

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