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7. Obtain the graph of the region bounded by y=- and y= 1+2 a. Use Maple or your graphing calculator to find the points of intersection of the two curves. Write the coordinates of the points of intersection with six significant digits. b. Find the volume of the solid of revolution if the region in part a) is revolved about each of the lines below. In each case: sketch the region, show the axis of revolution, draw a representative strip, state the method chosen, and show the set up (make use of symmetry). State volume answers to six significant digits. 1) the x-axis ii) the y-axis