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Problem
Problem
The value of
lim
x
→
π
2
+
cos
x
−
1
(
π
−
x
)
2
\lim_{x \to \pi} \frac{\sqrt{2 + \cos x} - 1}{(\pi - x)^2}
lim
x
→
π
(
π
−
x
)
2
2
+
c
o
s
x
−
1
is
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