Question
Find the limits.$$\lim _{x \rightarrow-\infty} \frac{e^{x}+e^{-x}}{e^{x}-e^{-x}}$$
Step 1
To simplify the expression, we multiply and divide by the lowest power, which is $e^{-x}$. This gives us: $$ \lim _{x \rightarrow-\infty} \frac{e^{x} \cdot e^{x} + 1}{e^{x} \cdot e^{x} - 1} $$ Show more…
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