Evaluate the following limits. (Note the negative sign in parts (a), (b), and (c).)
The dominant term is in the denominator.
, the fraction gets closer to .
The dominant term is
in the numerator (square root of is ) and in the denominator, so the answer is the ratio of the coefficients.
The cosine function oscillates between
and forever. Since a limit must approach a single height, the limit does not exist.
Is the graph approaching the SAME height from both sides?
What height is the graph approaching as