Question
Determine each limit (answer as appropriate, with a number, $\infty,-\infty$ or does not exist).$$\lim _{x \rightarrow \pi / 2} e^{-\tan x}$$
Step 1
The function $\tan x$ is undefined at $\pi/2$ and approaches $\infty$ as $x$ approaches $\pi/2$ from the left and $-\infty$ as $x$ approaches $\pi/2$ from the right. Show more…
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