PLEASE SHOW WORK!!! Each problem below consists of three very similar integrals that need to be solved using three different techniques. Begin by thinking about how the three integrals differ and try to decide what method to use on each one. Then solve the problems. Problem 1. / d3: / d3: / dx x2+4$+5 x2+4x+4 $2+4m Problem 2. / (3:2 + 42: + 3)dx / (a: + 2)dm / d3: x+1 $2+4x+3 x2+4sc+3 Problem 3. 44-232 /\\/4+x2dm / d1: /x\\/4+x2da