Do any three

4.2.4 Theorem Let A C R, let f and g be functions on A to R, and let c E R be a cluster point of A. Further, let be R. (a) If limf = L and lim g = M, then: lim (f + g) = L+M, lim (f - 8) = L -M, lim (fg) = LM, lim (bf) = bL