1 Evaluate the following limits or prove that the limit does not exist If the limit does exis use the e 6 definition to prove the value of the limit 2 lim x y 0 0 a lim x y 2 3 y 3 b c lim 2 HI d lim e lim 1 sin y x z y 3 2 Y 1 x y z y 0 0 x y zy 1 z y 1 1 2 1