Limit of quotient equals quotient of limits

From Calculus
Revision as of 01:46, 16 October 2011 by Vipul (talk | contribs) (Created page with "==Statement== Suppose <math>f</math> and <math>g</math> are functions of one variable. Suppose <math>c \in \R</math> is such that both <math>f</math> and <math>g</math> are ...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Statement

Suppose f and g are functions of one variable. Suppose cR is such that both f and g are defined on the immediate left and the immediate right of c. Further, suppose that the limits limxcf(x) and limxcg(x) both exist (as finite numbers) and that limxcg(x)0. In that case, the limit of the pointwise quotient of functions f/g exists and is the quotient of the individual limits:

limxc(fg)(x)=limxcf(x)limxcg(x)

Equivalenty:

limxcf(x)g(x)=limxcf(x)limxcg(x)