Consider the function on the interval (0, 2π). f(x) = 7 sin2(x) + 7 sin(x) (a) find the open interval(s) on which the function is increasing or decreasing. (enter your answers using interval notation.) increasing decreasing (b) apply the first derivative test to identify all relative extrema. relative maxima (x, y) = (smaller x-value) (x, y) = (larger x-value) relative minima (x, y) = (smaller x-value) (x, y) = (larger x-value)