Which of the following sequence is an A.P `(A) f(n)=ab +b, n in N ` (B) `f(n) =kr^n, n in N` (C) `f(n) = (an +b) kr^n ,n in N` (D) `f(n)=1/(a(n+b/n)) ,n in N`

If f(n)=1^2+2.2^2+3^2+2.4^2+5 .6^2+2.6^2+...+ n terms ,then (A) f(n)= (n(n+1)^2)/2 , if n is even (B) f(n)= (n^2(n+2)^2)/2, if n is even (C) f(n)= (n^2(n+1))/2 , if n is odd (D) f(n)= (n(n+3)^2)/2 if n is odd

If f(n)=(-1)^(n-1)(n-1) and g(n)=n-f (n)AA n in N then (gog)(n)=

Name the following chromosomal conditions . (a) 2n + 2 + 2 (b) 2n - 1 - 1 (c) x (d) 2n (e) 2n + n + n (f) 2n + 1

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

If f(n)=(-1)^(n-1)(n-1),G(n)=n-f(n) for every n in N then (GOG)(n)=

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)=2cosn xAAn 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)=2cosn xAAn 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_(1),f_(2),f_(3)...... be a sequence of integers satisfying f_(n-1)+f_(n)=2n for all n>=2 .If f_(1)=100 then (A) "f_(n)=n+98" if "n" is odd (B) "f_(n)=n-98" if "n" is even (C) "f_(n)=n+99" if "n" is odd (D) "f_(n)=n-99" if "n" is even