15.

21: a. Find the local extrema of the function f(x) = sin 3x on the interval 0 S x S g, and say where they occur. b. Graph the function and its derivative together. Comment on the behavior of f in relation to the signs and values of f'. a. Identify the function's local extreme values in the given domain, and say where they occur. b. Graph the function over the given domain. Which of the extreme values, if any, are absolute? X3 h(x)=?-8x2+64x, 05x