Proofread you question before posting it.
Not familiar with the different modes of transportation of functions if you meant commute.
Comute f(x) of
a) f(x) = sinxcosx / sinx + cosx
b) f(x) = (1-x^2) / (1+x+x^2)
c) f(x) = x^7 secx
2 answers
Just use the normal product and chain rules, with the chain rule:
f=uv, f' = u'v+uv'
f=u/v, f' = (u'v-uv')/v^2
Just take it a step at a time; you know how to get the derivatives of the various function involved. If you get stuck, come back with your work so far.
f=uv, f' = u'v+uv'
f=u/v, f' = (u'v-uv')/v^2
Just take it a step at a time; you know how to get the derivatives of the various function involved. If you get stuck, come back with your work so far.