The integral dx 2- 4 1 VX is an improper integral of type Il (-3) is an improper integral of type I that converges to 4 (3)% that converges to 4 the above the above is an improper integral of type I (-3)2 is an improper integral of type II (3)%a that converges to 4 that converges to 4 the above O the above 3.