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Mathematics
Problem
Find
lim
x
→
∞
7
x
4
−
2
x
+
1
−
3
x
4
+
5
\displaystyle\lim_{x\to\infty}\frac{7x^{4}-2x+1}{-3x^{4}+5}
x
→
∞
lim
−
3
x
4
+
5
7
x
4
−
2
x
+
1
. a)
−
3
7
-\dfrac{3}{7}
−
7
3
b)
7
3
\dfrac{7}{3}
3
7
c)
−
7
3
-\dfrac{7}{3}
−
3
7
d) 0
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