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∫
tan
x
+
tan
3
x
1
+
tan
3
x
d
x
\int \frac{\tan x + \tan^3 x}{1 + \tan^3 x} dx
∫
1
+
t
a
n
3
x
t
a
n
x
+
t
a
n
3
x
d
x
Mathematics
Problem
∫
tan
x
+
tan
3
x
1
+
tan
3
x
d
x
\int \frac{\tan x + \tan^3 x}{1 + \tan^3 x} dx
∫
1
+
t
a
n
3
x
t
a
n
x
+
t
a
n
3
x
d
x
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