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Lebl-Basic-Analysis-I
· Problem 3.2.14
Continuous Functions
Mathematics · continuous-functions
Problem
Suppose
f
:
[
−
1
,
0
]
→
R
f : [-1, 0] \to \mathbb{R}
f
:
[
−
1
,
0
]
→
R
and
g
:
[
0
,
1
]
→
R
g : [0, 1] \to \mathbb{R}
g
:
[
0
,
1
]
→
R
are continuous and
f
(
0
)
=
g
(
0
)
f(0) = g(0)
f
(
0
)
=
g
(
0
)
. Define
h
:
[
−
1
,
1
]
→
R
h : [-1, 1] \to \mathbb{R}
h
:
[
−
1
,
1
]
→
R
by
h
(
x
)
:
=
f
(
x
)
h(x) := f(x)
h
(
x
)
:=
f
(
x
)
if
x
≤
0
x \leq 0
x
≤
0
and
h
(
x
)
:
=
g
(
x
)
h(x) := g(x)
h
(
x
)
:=
g
(
x
)
if
x
>
0
x > 0
x
>
0
. Show that
h
h
h
is continuous.
Related theory
Characteristic Functions And Moment Generating Functions
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