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Byju's Answer
Standard XII
Mathematics
Continuity in an Interval
If the functi...
Question
If the function
f
defined on
(
−
1
3
,
1
3
)
by
f
(
x
)
=
⎧
⎪
⎨
⎪
⎩
1
x
log
e
(
1
+
3
x
1
−
2
x
)
,
when
x
≠
0
k
,
when
x
=
0
is continuous, then
k
is equal to
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Solution
As
f
(
x
)
is continuous,
lim
x
→
0
f
(
x
)
=
f
(
0
)
=
k
⇒
lim
x
→
0
1
x
log
e
(
1
+
3
x
1
−
2
x
)
=
k
⇒
lim
x
→
0
3
log
(
1
+
3
x
)
3
x
−
lim
x
→
0
(
−
2
)
log
(
1
−
2
x
)
(
−
2
x
)
=
k
⇒
3
+
2
=
k
⇒
k
=
5
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Similar questions
Q.
If the function
f
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x
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⎧
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
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⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
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1
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⎛
⎜ ⎜
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then
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Q.
If the function
f
defined on
(
−
1
3
,
1
3
)
by
f
(
x
)
=
⎧
⎪
⎨
⎪
⎩
1
x
log
e
(
1
+
3
x
1
−
2
x
)
,
when
x
≠
0
k
,
when
x
=
0
is continuous, then
k
is equal to
Q.
If the function
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x
−
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−
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≠
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x
=
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, then the ordered pair
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)
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Q.
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→
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and
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x
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=
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If the function f defined on
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