Is f(x)=-xe^x+x^3-x^2f(x)=−xex+x3−x2 concave or convex at x=-2x=−2?
1 Answer
Jan 15, 2017
Since
Explanation:
First, you would calculate the first and the second derivatives:
Then you would calculate
Since
graph{-xe^x+x3-x^2 [-10.035, 9.965, -7.32, 2.68]}