(a) If f(x) = sin (sin x), 0 < x < /2 use the commands discussed in...

(a) If f(x) = sin (sin x), 0 < x < π/2 use the commands discussed in Exercise 9 to find the left and right sums for n = 10, 30, and 50.
(b) Illustrate by graphing the rectangles in part (a).
(c) Show that the exact area under f lies between 0.87 and 0.91.