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Problems
Let
L
=
(
x
2
−
1
)
[
tan
(
β
x
??
2
)
]
(
x
−
1
)
(
x
2
+
1
)
,
L = \frac{(x^2-1) \bigl[\tan\left(\frac{\boxed{\beta x\,\text{??}}}{2}\right)\bigr]}{(x-1)(x^2+1)},
L
=
(
x
−
1
)
(
x
2
+
1
)
(
x
2
−
1
)
[
tan
(
2
β
x
??
)
]
,
…
Mathematics
Problem
Let
L
=
(
x
2
−
1
)
[
tan
(
β
x
??
2
)
]
(
x
−
1
)
(
x
2
+
1
)
,
L = \frac{(x^2-1) \bigl[\tan\left(\frac{\boxed{\beta x\,\text{??}}}{2}\right)\bigr]}{(x-1)(x^2+1)},
L
=
(
x
−
1
)
(
x
2
+
1
)
(
x
2
−
1
)
[
tan
(
2
β
x
??
)
]
,
sorry.
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