The figure to the right shows four regions bounded by y4 the graph of y = x sin x: R1, R2, Rg, and R4, whose Area = 1 Area = * +1 y = Xanx areas are 1, x - 1, x + 1, and 2x -1, respectively. Use this information to evaluate the following integral. R R2 2x R3 Ana = 7 - 1 RA x sin x dx Area = 2w - 1 x sin x dx = (Type an exact answer, using it as needed.)