The `nth` derivative of the function `f(x)=1/(1-x^2)` [where `in(-1,1)` at the point `x=0` where `n` is even is (a) `0` (b) `n!` (c) `n^nC_2` (d) `2^nC_2`

The nth derivative of the function f(x)=1/(1-x^2) [where x in (-1,1) ] at the point x = 0 where n is even is

The nth derivative of the function f(x)=1/(1-x^2) [where x in(-1,1) at the point x=0 where n is even is (a) 0 (b) n! (c) n^nC_2 (d) 2^nC_2

The n t h derivative of the function f(x)=1/(1-x^2)[w h e r ex in (-1,1)] at the point x=0 where n is even is (a) 0 (b) n ! (c) n^n C_2 (d) 2^n C_2

The nth derivative of the function f(x)=(1)/(1-x^(2))[ where in(-1,1) at the point x=0 where n is even is (a) 0 (b) n! (c) n^(n)C_(2)(d)2^(n)C_(2)

If ^nC_2 : ^(2n)C_1 = 3:2 find n

m points on one straight line are joined to n points on another straight line. The number of points of intersection of the line segments thus formed is (A) ^mC-2.^nC_2 (B) (mn(m-1)(n-1))/4 (C) (^mC_2.^nC_2)/2 (D) ^mC_2+^nC_2

m points on one straight line are joined to n points on another straight line. The number of points of intersection of the line segments thus formed is (A) ^mC-2.^nC_2 (B) (mn(m-1)(n-1))/4 (C) (^mC_2.^nC_2)/2 (D) ^mC_2+^nC_2

The mean of the values 0,1,2,3………….n with the corresponding weights ^nC_0 ,^n C_1,....^nC_n respectively is a) (n+1)/2 b) (n-1)/2 c) (2^n-1)/2 d) n/2

If ^(n+1)C_3=2.^nC_2, then n= (A) 3 (B) 4 (C) 5 (D) 6

If ^(n+1)C_3=2.^nC_2, then n= (A) 3 (B) 4 (C) 5 (D) 6