### Home > CALC > Chapter 4 > Lesson 4.5.1 > Problem4-167

4-167.

Using your graphing calculator, find all relative maximums and minimums, points of inflection, and discontinuities of the curve between −2π x ≤ 2π. 4-167 HW eTool (Desmos). Homework Help ✎

Careful!
Recall that a maximum (and a minimum) is defined as a y-value, and that y-value must exist.
What does that mean about the maximum of

To find the minimum values and the point of inflection, you will need to examine f '(x) and f ''(x), and then find their respective zeros. Remember that we are only considering the the domain −2πx ≤ 2π.

Use the eTool below to solve the problem.
Click the link at right for the full version of the eTool: Calc 4-167 HW eTool