I'm been having some problems with these and I really need the help
1) The number of inflection points for the graph of
y=2x+cos(x^2) in the interval 0≤x≤5 is
the answer is 8
2) If f(x) = 2x^2 -x^3 and g(x) = x^2-2x, for what values of a and b is
the integral from a to b f(x) dx > the integral from a to b g(x) dx?
The answer is a=0 and b=2
3)Also what does the lim as h approaches 0 when f(2+h)-f(2)/h=2 look like? Or rather what does it do.