9000070408

SubArea: 
Function Behavior
Level: 
A
Project ID: 
9000070408
Source Problem: 
9000070407
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.
\(\left (-3,5\right )\)
\(\left (-\infty ,-3\right )\)
\(\left (5,\infty \right )\)
\(\left (-12,45\right )\)