Problem 5 20 pts No calculators Using the Disc or Washer method only find the exact value of the volume of s solid obtained by rotating the region enclosed by y x and x y about y b c Sketch the two curves on the same graph and shade in the region between them Show calculations for intersection points Sketch the 3D volume that results when you rotate the shaded area from part a about y 1 Draw a typical disc or washer on this 3D sketch Determine an expression for dV as shown in lecture State which variable is queen variable and give a brief explanation