9000070408

Level: 
Project ID: 
9000070408
Source Problem: 
Accepted: 
1
Clonable: 
1
Easy: 
0
Given the function \(f(x) = -x^{3} + 3x^{2} + 45x - 12\), find the intervals where \(f\) is an increasing function.
\(\left (-3;5\right )\)
\(\left (-\infty ;-3\right )\)
\(\left (5;\infty \right )\)
\(\left (-12;45\right )\)