Level:
Project ID:
9000070303
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Given function \(f(x) = -x^{3} + 6x^{2} + 6x + 1\), find
the intervals where \(f\)
is a strictly concave up function.
\((-\infty ;2)\)
\((-1;\infty )\)
\((-\infty ;3)\)
\((-\infty ;6)\)