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Mathematics
Mathematics
Problem
Solve the equation:
2
tan
−
1
(
2
x
+
1
)
=
cos
−
1
x
2 \tan^{-1}(2x+1) = \cos^{-1}x
2
tan
−
1
(
2
x
+
1
)
=
cos
−
1
x
.
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