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Mathematics
Mathematics
Problem
If
f
(
x
)
=
x
3
+
7
x
−
1
f(x) = x^3 + 7x - 1
f
(
x
)
=
x
3
+
7
x
−
1
then
f
(
x
)
f(x)
f
(
x
)
has a zero between
x
=
0
x = 0
x
=
0
and
x
=
1
x = 1
x
=
1
. The theorem which best describes this, is: (A) Rolle's theorem (B) mean value theorem (C) maximum-minimum value theorem (D) intermediate value theorem
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