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Problems
Define
f
(
x
)
=
{
∣
x
+
2
∣
,
x
≤
−
1
x
2
,
−
1
<
x
<
1
x
1
/
3
,
x
≥
1
f(x)=\begin{cases}|x+2|,& x\le -1\\ x^{2},& -1<x<1\\ x^{1/3},& x\ge 1\end{cases}
f
(
x
)
=
⎩
⎨
⎧
∣
x
+
2∣
,
x
2
,
x
1/3
,
x
≤
−
1
−
1
<
x
<
1
x
≥
1
…
Mathematics
Problem
Define
f
(
x
)
=
{
∣
x
+
2
∣
,
x
≤
−
1
x
2
,
−
1
<
x
<
1
x
1
/
3
,
x
≥
1
f(x)=\begin{cases}|x+2|,& x\le -1\\ x^{2},& -1<x<1\\ x^{1/3},& x\ge 1\end{cases}
f
(
x
)
=
⎩
⎨
⎧
∣
x
+
2∣
,
x
2
,
x
1/3
,
x
≤
−
1
−
1
<
x
<
1
x
≥
1
List all
x
x
x
-values where
f
f
f
is not differentiable. For each such
x
x
x
-value, indicate whether the point is a corner or a cusp.
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