Let `f(n)=2cosn xAAn in N ,` then `f(1)f(n+1)-f(n)` is equal to `f(n+3)` (b) `f(n+2)` `f(n+1)f(2)` (d) `f(n+2)f(2)`

Let f(n)=2cos nx AA n in N, then f(1)f(n+1)-f(n) is equal to (a)f(n+3) (b) f(n+2)(c)f(n+1)f(2)(d)f(n+2)f(2)

Let f(n)=1+(1)/(2)+(1)/(3)++(1)/(n). Then f(1)+f(2)+f(3)+f(n) is equal to (a) nf(n)-1( b) (n+1)f(n)-nn(c)(n+1)f(n)+n(d)nf(n)+n

If f:(1, oo) to (2,oo) is given by f(n) = n+1 , then f^-1 (n) equals to?

If f(x)=(a-n^(n))^(1//n) where a gt 0 and n in N , then f[f(x)] is equal to :

if f(x)=x^(n) then f(1)+f'(1)/(1!)+f''(1)/(2!)+...+(f^(n)(1))/(n!) is equal to

Given f(1)=2 and f(n+1)=(f(n)-1)/(f(n)+1)AA n in N then

Let f: N to R be a function satisfying the condition f(1) + f(2) ……………. +f(n) = n^(2) f(n) AA n in N If f(2025) = 1/(2026) , then f(1) = ………….

If f(n+1)=(2f(n)+1)/(2) for n=1, 2, 3……….. and f(1)=2 , then (f(101))/(10) is equal to