Please I need help with these calculus questions

[6 points] 1. Either show that the Type II improper integral 1 dx is convergent and find its 4 O exact value, or show that this integral is divergent. Show all of your work. Use correct limit notation to receive full credit. [5 points ] 8 2. Either show that the Type I improper integral 1 dx is convergent and find x2 + 1 its exact value, or show that this integral is divergent. Show all of your work. Use correct limit notation to receive full credit. [5 points] 8 3. Either show that the Type I improper integral x dx is convergent and find x2 + 1 its exact value, or show that this integral is divergent. Show all of your work. Use correct limit notation to receive full credit