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Question 2 (10 points) Find the volume of the solid that results when the region under the curve y = V1 - x2 over the interval [0,1] is rotated about the x-axis. O O O 3 O co O TTQuestion 3 (10 points) Find the arc length of the graph of f (ac ) = (ac - 1 ) 2 over the interval [1,2]. O O 13V13 - 8 27 O V13 O 0Question 12 (10 points) Find the derivative dx dy for the parametric curve: x = , cost, y = sin(2t) O 0 O 4 cos(2t) sin t O 2 cos(2t) O 2 cost sin (2t)