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Mathematics
Mathematics
Problem
Evaluate
lim
x
→
π
−
1
−
cos
x
(
π
−
x
)
2
\displaystyle\lim_{x\to \pi^{-}}\frac{1-\cos x}{(\pi-x)^{2}}
x
→
π
−
lim
(
π
−
x
)
2
1
−
cos
x
.
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