2. Region R is bounded by the curve y = sin r, and the line y = =x in the first quadrant. (a) Find the area of the region R (b) Find the volume of the solid resulted from revolving R about the r-axis. (c) Set the integral for the volume of the solid resulted from revolving R about the line = = -1. (d) Set up an integral that can be used to find the volume of the solid resulted from revolving R about the line y = -1. (e) Set up an integral that can be to find the volume of the solid resulted from revolving R about the line I = 7. 17