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Mathematics
Mathematics
Problem
Solve:
tan
2
x
tan
2
3
x
tan
4
x
=
tan
2
x
−
tan
2
3
x
+
tan
4
x
\tan^2 x \tan^2 3x \tan 4x = \tan^2 x - \tan^2 3x + \tan 4x
tan
2
x
tan
2
3
x
tan
4
x
=
tan
2
x
−
tan
2
3
x
+
tan
4
x
.
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