Use the definition of an improper integral to evaluate the given integral. 1. Je 5 xxIn x2 1 2. J3 ( x-2)2 dX -2 3. Jo V8-x2 4. The volume obtained when the area between the x-axis for x = 1 and the graph of f(x) = =in @ (Fig. 12) is revolved about the x-axis. y sin(x) y=2 X X Fig. 12