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physics=world
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1. f(x) = 3cosx - ((sinx)/(4))
use the rules of differentiation3. i tried adding them together which i got
((12cosx - sinx) / (4))
then, i used quotient rule
((4)(-12sinx - cosx) - (12cosx - sinx)(0))/ (4^2)
which i got this for an answer
(-12sinx - cosx) /( 4)but the answer is
(-3sinx - cosx) /( 4)
Homework Equations
use the rules of differentiation3. i tried adding them together which i got
((12cosx - sinx) / (4))
then, i used quotient rule
((4)(-12sinx - cosx) - (12cosx - sinx)(0))/ (4^2)
which i got this for an answer
(-12sinx - cosx) /( 4)but the answer is
(-3sinx - cosx) /( 4)
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