Here's the question:
One approach (that Wolfram Alpha used):
=square root of lim
which is our original question upside down.
Does this prove the limit is 1.
ie. if limit a/b = limit b/a does this mean the limit must equal 1?
Also, my Calc text book isn't written in such a manner. If there isn't a + or -, the it is the overall limit. My book is very good about specifying direction.