I really need help with this

1. Find the following limits (a) lim 4-24 (b) lim - (c) lim (#+1)|2-3 3 +2 12-27 3-3 2. Find the values of the parameters o & # to make the following limit exist and be finite. What is then the value of the limit? lim or + Ba + 25 or - 5 3. Answer the following questions for the piece-wise defined function f(z) described on the right hand side. (a) lim f(x) = f(x) = sin(ma) for a 1 4. Find the difference quotient for f(x) = 2x2 + 4x by completing the fol- lowing steps: (a) fath) (b) f(ath) - f(2) (c) Lath)-f(2) 5. Find the difference quotient for f(x) = Trin by completing the following steps: (a) f(ath) (b) f(ath) - f(2) (c) [(ath)-f(x) h