limt of (e^x +e^(-x))/(2-e^x) [Limit at negative infinity]

limt of (e^x +e^(-x))/(2-e^x) [Limit at negative infinity]

In this video, I showed how touse algebraic manipulation to evaluate the limit of a complex fraction

ภาพตัวอย่างวิดีโอ
Show that \( \lim _{x \rightarrow 0} \frac{e^{1 / x}-1}{e^{1 / x}+1} \) does not exist.