1. The problem statement, all variables and given/known data A) lim as x-1 of x^2-x+1/x+1 =1/2 B)lim as x-0 of x^2 sin(1/x)=0 C) lim as x-1+ of 2^1/x-1=infinity 2. Relevant equations By delta-epsilon proofs 3. The attempt at a solution A) I took |f(x)-l| and could not factor out an x-1 B) I know that x^2 goes to 0 and that the compositions of functions have the same limit. C) I have no clue how to evaluate limits from the right hand side!