Science:Math Exam Resources/Courses/MATH110/April 2013/Question 03 (e)/Solution 1

The function's value is zero at each end of the interval [0,π], we have found a maximum at π/4 and an inflection point at π/2 so your sketch should look something like the plotted function here.

Make sure you visibly identify the maximum and inflection point on your sketch of the function.