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Mathematics
Problem
Verify that the equation
x
3
−
4
x
+
1
=
0
x^{3}-4x+1=0
x
3
−
4
x
+
1
=
0
possesses at least one real solution in the open interval
(
0
,
1
)
(0,1)
(
0
,
1
)
.
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