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Question
Mathematics
If the function f(x) satisfies displaystyle lim x arrow 1 (f(x)-2/x2-1)=π
Q. If the function
f
(
x
)
satisfies
x
→
1
lim
x
2
−
1
f
(
x
)
−
2
=
π
106
168
Limits and Derivatives
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A
x
→
1
lim
f
(
x
)
=
1
50%
B
x
→
1
lim
f
(
x
)
=
2
50%
C
x
→
1
lim
f
(
x
)
=
0
0%
D
x
→
1
lim
f
(
x
)
=
π
0%
Solution:
Given,
x
→
1
lim
x
2
−
1
f
(
x
)
−
2
=
π
⇒
x
→
1
lim
(
x
2
−
1
)
x
→
1
lim
[
f
(
x
)
−
2
]
=
π
⇒
x
→
1
lim
[
f
(
x
)
−
2
]
=
π
x
→
1
lim
(
x
2
−
1
)
⇒
x
→
1
lim
f
(
x
)
−
2
=
π
(
1
2
−
1
)
⇒
x
→
1
lim
f
(
x
)
−
2
=
π
×
0
⇒
x
→
1
lim
f
(
x
)
−
2
=
0
⇒
x
→
1
lim
f
(
x
)
=
2