In Problems 1-5, let R be the region bounded by y=√x, y = 1, and x = 4. Each problem will describe a solid generated by rotating R about an axis. Write an integral expression that can be used to find the volume of the solid (do not evaluate). 1) The solid is generated by rotating R about the x-axis. 2) The solid is generated by rotating R about the y-axis. 3) The solid is generated by rotating R about y = 1. 4) The solid is generated by rotating R about x = -2. 5) The solid is generated by rotating R about y = 3.

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