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4. Graph the function and then using the method of Disks/Washers. Find the volume of rotation for y = Sin² (x), y = 0,0 ≤ x ≤ л about y = −1 5. Graph the function and then using the method of Disks/Washers. Find the volume of rotation fory = x, y = xe¹-2, about y = 3. Use NSolve to find the points of intersection