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1. Consider y? + 22 =r2, > > 0 about the y-axis. 2. Find an equation of the surface of revolution generated by revolving the

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1. Consider y? + 22 =r2, > > 0 about the y-axis. 2. Find an equation of the surface of revolution generated by revolving the plane curve about the indicated axis. Draw a sketch of the surface. (a) 1 = 4y; about the y-axis (6) y' = 23; about the 2-axis (c) 1 + 42? = 16; about the r-axis

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