Let f be the function defined by f(x)=sin squared x - sinx for 0<or=x<or=(3pi)over 2.
a. find the x- intercepts of the graph of f
b.find the intervals on which f is increasing
c. find the absolute maximum and absolute minimum value of f. Justify your answer.
This shows how to find x-intercepts, intervals of increase, and absolute maximum and minimum of a trigonometric function.