Asked by Paula

Find intervals of increase/decrease and classify all critical points of
(a)g(x)=cos(􏰀x/(x2 +9))
(b) f(x)=x5/3 −x2/3
Answered by Reiny
can't make out a)

if x5/3 is supposed to mean x^(5/3)
use the notation I just used.
Answered by Paula
(a) g(x)=cos(􏰀x/(x^2 +9))
(b) f(x)=x^(5/3) −x^(2/3)