There are many limit properties, and they make calculating limits easier.
So, if lim(f(x)) = L and lim(g(x)) = K
Scalar Multiple: lim(b*f(x)) = bL Sum or difference: lim(f(x) +/- g(x)) = L +/- K Product: lim(f(x)g(x)) = LK Quotient: lim(f(x)/g(x)) = L/K, given K != 0 Power: lim(f(x)^n) = L^n
So, those are all logical, and they help calculate other limits
David Witten