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Mathematics
Mathematics
Problem
Use the substitution
x
=
2
sec
u
x = 2 \sec u
x
=
2
sec
u
to find
∫
1
x
x
2
−
4
d
x
\int \frac{1}{x\sqrt{x^2 - 4}} dx
∫
x
x
2
−
4
1
d
x
.
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