Evaluate the limit (try to do these without using L'Hopital's Rule): x - 4x +4 zar+5r- 14x (a) lim (b) lim - (c) lim v 5+3 2x + x2/3-4 - x + sin x + 2 x + sin r for a = 0, a= 2, and a = (Hint: You will need the Sandwich Theorem.)