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Mathematics
Problem
Evaluate the following limits in Exercises 1 to 22. 22.
lim
x
→
π
2
tan
2
x
x
−
π
2
\lim _{x \rightarrow \frac{\pi}{2}} \frac{\tan 2 x}{x-\frac{\pi}{2}}
lim
x
→
2
π
x
−
2
π
t
a
n
2
x
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