the 1. Assume f(x) is bounded, i.e. I fokk where k is a positive constant, On interval [-L, L]. Assume also that f(x) is precewise smooth on [-L, L], finite number of points of cliscontinuity, f is differentiable except at points of discontinuity, and left and right derivatives exist at points of discontinuity i.e. only a L Show that Lion [fanica (apa) cx f(x) cos (Hint: Use integration by parts)