Answer the following questions for the functiondefined on the interval . Enter points, such as inflection points in ascending order, i.e. smallest x values first.
Remember that you can enter "pi" for as part of your answer.
A. is concave down on the region to
B. A global minimum for this function occurs at
C. A local maximum for this function which is not a global maximum occurs at
D. The function is increasing on to and on to .
Actually, it's not a test question. It's a homework question (only worth one point). I'm more interested in the method of solving and I already found answers to part of it.
I have found the global minimum to be zero. I found the function to be increasing on the interval 0 to 2.6415926, but I don't know the other interval (the first part is -12.46, but I don't know the endpoint of increase).
I also am having trouble finding where the function is concave down. I took the second derivative, but can't find the local maximum. I think it might be -12.466. Can you give me some hints?