Level:
Project ID:
9000070302
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Given function \(f(x) = x^{3} + 3x^{2} + 12x + 4\), find
the intervals where \(f\)
is a strictly concave down function.
\((-\infty ;-1)\)
\((-\infty ;0)\)
\((-\infty ;2)\)
\((-\infty ;4)\)