4 Evaluate the limit, if it exists. a. lim x->5 (x^2 - 6x + 5) / (x - 5) b. lim x->-3 (x^2 + 3x) / (x^2 - x - 12) c. lim x->5 (x^2 - 5x + 6) / (x - 5) d. lim x->4 (x^2 + 3x) / (x^2 - x - 12) e. lim t->-3 (t^2 - 9) / (2t^2 + 7t + 3) f. lim x->-1 (2x^2 + 3x + 1) / (x^2 - 2x - 3) g. lim h->0 ((-5 + h)^2 - 25) / h h. lim h->0 ((2 + h)^3 - 8) / h i. lim x->-2 (x + 2) / (x^3 + 8) j. lim t->1 (t^4 - 1) / (t^3 - 1) k. lim h->0 (sqrt(9 + h) - 3) / h l. lim u->2 (sqrt(4u + 1) - 3) / (u - 2) m. lim x->3 (1/x - 1/3) / (x - 3) n. lim h->0 ((3 + h)^-1 - 3^-1) / h
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