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Mathematics
Problem
For what real value of
k
k
k
does
lim
x
→
∞
k
x
4
+
7
x
2
2
x
4
−
3
\displaystyle\lim_{x\to\infty}\frac{kx^{4}+7x^{2}}{2x^{4}-3}
x
→
∞
lim
2
x
4
−
3
k
x
4
+
7
x
2
equal
1
2
\dfrac12
2
1
? a)
0
0
0
b)
1
2
\dfrac12
2
1
c)
1
1
1
d)
2
2
2
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