Question from kritica, a student:

limit x->0 (logx-log(x-1))

Kritica,

To evaluate this limit you need two facts. The first about logs

log(p/q) = log(p) - log(q)

and the second about limits and logs.

If f(x) is a continuous function then lim(log(f(x))) = log(lim(f(x))) where both limits are as x approaches a.

Harley