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Mathematics
Mathematics
Problem
Evaluate
∫
2
x
+
5
x
2
+
4
x
+
5
d
x
\displaystyle \int \frac{2x+5}{x^{2}+4x+5}\,dx
∫
x
2
+
4
x
+
5
2
x
+
5
d
x
.
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