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Mathematics
Mathematics
Problem
10. Prove that the greatest integer function defined by
f
(
x
)
=
[
x
]
,
0
<
x
<
3
f(x)=[x], 0<x<3
f
(
x
)
=
[
x
]
,
0
<
x
<
3
is not differentiable at
x
=
1
x=1
x
=
1
and
x
=
2
x=2
x
=
2
.
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