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Mathematics
Mathematics
Problem
Calculate the exact area enclosed by the graph of
y
=
4
x
2
+
4
y=\dfrac{4}{x^{2}+4}
y
=
x
2
+
4
4
and the
x
x
x
-axis over the entire real line
(
−
∞
,
∞
)
(-\infty,\infty)
(
−
∞
,
∞
)
.
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