Consider the given function and the given interval. f\(x\) = 2 sin\(x\) - sin\(2 x\) text(, ) [0 text(, ) pi] (a) find the average value fave of f on the given interval. fave = correct: your answer is correct. (b) find c such that fave = f(c). (enter solutions from smallest to largest. if there are any unused answer boxes, enter none in the last boxes. round the answers to three decimal places.)