the first quadrant bounded by the graphs of y = V16 – x², y = 0, andx = 0 is revolved about (a) the line x = 4 and (b) the line y = -4. Using the method of cylindrical shells, set up but do not evaluate an integral for the volume of the solid generated when the region Rin V = 2a(4 – x)V16 – x² dx V = 2m(4 + x)V16 – x² åx V = 2a(4 – x)(16 – x²) ảx 16 V = A(4 – x)V16 – x² åx (b) V = 2m(4 + y)V16 – y² ây 16 Ov = 2a(4 + y)/16 – y² dy 16 V = A(4 + y)/16 – y dy =7 – »(16 – y°) ày 2x(4

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