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Mathematics
Mathematics
Problem
Evaluate
∫
cos
2
x
+
2
sin
2
x
cos
2
x
d
x
\int \frac{\cos 2x + 2\sin^2 x}{\cos^2 x}\, dx
∫
c
o
s
2
x
c
o
s
2
x
+
2
s
i
n
2
x
d
x
.
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