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Mathematics
Mathematics
Problem
Evaluate
∫
0
π
x
d
x
a
2
cos
2
x
+
b
2
sin
2
x
\int_{0}^{\pi} \frac{x dx}{a^{2} \cos^{2} x + b^{2} \sin^{2} x}
∫
0
π
a
2
cos
2
x
+
b
2
sin
2
x
x
d
x
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