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Mathematics
Mathematics
Problem
Evaluate.
lim
x
→
π
4
cos
(
2
x
)
1
−
2
sin
(
x
)
\lim_{x \to \frac{\pi}{4}} \frac{\cos(2x)}{1 - \sqrt{2} \sin(x)}
x
→
4
π
lim
1
−
2
sin
(
x
)
cos
(
2
x
)
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