Squeeze Theorem - Expii

If f(x)≤g(x)≤h(x) for all x≠a in an open interval containing a, and the limit of f(x) and the limit of h(x) at x=a are both equal to L, then the limit of g(x) at x=a is also equal to L. This can be useful if the limits of f and h are easier to directly evaluate than the limit of g.