If `f:NtoR,` where `f(n)=a_(n)=(n)/((2n+1)^(2))` write the sequence in ordered pair from.

If a_(1) is the greatest value of f(x) , where f(x) =((1)/(2+[sinx])) (where [.] denotes greatest integer function) and a_(n-1)=((-1)^(n-2))/((n+1))+a_(n) (where n in N), then lim_(nrarroo) (a_(n)) is

If for a sequence {a_(n)},S_(n)=2n^(2)+9n , where S_(n) is the sum of n terms, the value of a_(20) is

If for a sequence {a_(n)},S_(n)=2n^(2)+9n , where S_(n) is the sum of n terms, the value of a_(20) is

If for a sequence {a_(n)},S_(n)=2n^(2)+9n , where S_(n) is the sum of n terms, the value of a_(20) is

If for a sequence {a_(n)},S_(n)=2n^(2)+9n , where S_(n) is the sum of n terms, the value of a_(20) is

If f:NtoR is defined by f(1) = - 1 and f(n+1) = 3f(n) + 2 for nge1 , then f is

If a_(1)=2 and a_(n)=a_(n-1)+4AA n>=2 write first terms of the five sequence

If f(x+y)=f(x)f(y) for all x and y,f(1)=2 and a_(n)=f(n),n in N, then the equation of the circle having (a_(1),a_(2)) and (a_(3),a_(4)) as the ends of its one diameter