what is the critical points in this equation F(x) = x^3-3x^2+3x+1?
Mr Google tells me that critical point is what Americans call stationary points.
Ok well that is when the first derivative =0
F(x) = x^3-3x^2+3x+1
F'(x) = 3x^2-6x+3
3x^2-6x+3=0
x^2-2x+1=0
(x-1)^2=0
x=1
F(1) = 1-3+3+1=2
so the only critical point is (1,2)
F''(x) = 6x-6
F''(1) = 6-6=0 Mmm
As x tends to 1 from above, f"(x)>0 concave up
As x tends to 1 from below, f"(x)<0 concave down
So at (1,2) there is a horizontal point of inflection.