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Mathematics
Mathematics
Problem
Evaluate the limit
lim
x
→
0
1
−
cos
x
−
x
2
2
x
4
.
\lim_{x\to 0}\frac{1-\cos x-\dfrac{x^{2}}{2}}{x^{4}}.
x
→
0
lim
x
4
1
−
cos
x
−
2
x
2
.
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