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Mathematics
Problem
The
n
n
n
th derivative of the function
f
(
x
)
=
1
1
−
x
2
f(x)=\frac{1}{1-x^2}
f
(
x
)
=
1
−
x
2
1
(where
x
∈
(
−
1
,
1
)
x\in(-1,1)
x
∈
(
−
1
,
1
)
) at the point
x
=
0
x=0
x
=
0
where
n
n
n
is even is (a) 0 (b)
n
!
n!
n
!
(c)
n
n
C
2
n^n C_2
n
n
C
2
(d)
2
n
C
2
2^n C_2
2
n
C
2
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