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Problems
Define
r
(
x
)
=
{
(
x
+
2
)
3
,
x
<
−
1
,
x
2
−
1
,
−
1
≤
x
≤
2
,
(
x
−
2
)
3
+
5
,
x
>
2.
r(x)=\begin{cases} (x+2)^{3},& x<-1,\\ x^{2}-1,& -1\le x\le 2,\\ (x-2)^{3}+5,& x>2. \end{cases}
r
(
x
)
=
⎩
⎨
⎧
(
x
+
2
)
3
,
x
2
−
1
,
(
x
−
2
)
3
+
5
,
x
<
−
1
,
−
1
≤
x
≤
2
,
x
>
2.
…
Mathematics
Problem
Define
r
(
x
)
=
{
(
x
+
2
)
3
,
x
<
−
1
,
x
2
−
1
,
−
1
≤
x
≤
2
,
(
x
−
2
)
3
+
5
,
x
>
2.
r(x)=\begin{cases} (x+2)^{3},& x<-1,\\ x^{2}-1,& -1\le x\le 2,\\ (x-2)^{3}+5,& x>2. \end{cases}
r
(
x
)
=
⎩
⎨
⎧
(
x
+
2
)
3
,
x
2
−
1
,
(
x
−
2
)
3
+
5
,
x
<
−
1
,
−
1
≤
x
≤
2
,
x
>
2.
List all
x
x
x
-values at which
r
r
r
has a relative extremum on
R
\mathbb{R}
R
and specify whether each is a relative maximum or a relative minimum.
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