If B is the set of even positive integers then `F:N -> B` defined by `f(x)=2x` is

If N denotes the set of all positive integers and if f : N -> N is defined by f(n)= the sum of positive divisors of n then f(2^k*3) , where k is a positive integer is

If N denotes the set of all positive integers and if : NtoN is defined by f(n)= the sum of positive divisors of n, then f(2^(k).3) , where k is a positive integer, is

If N denotes the set of all positive integers and if f:N rarr N is defined by f(n)= the sum of positive divisors of n then f(2^(k)*3) where k is a positive integer is

If NN denotes the set of all positive integers and if f:NN rarrN is defined by f(n)= the sum of positive divisors of n then f(2^(k).3) , where k is a positive integer is

f: N to A where N is the set of natural numbers and A is the set of even natural numbers, defined by f(x) = 2x , then f is:

Let Z denote the set of all integers and f: Z to Z defined by f(x) = {{:(x+2, ("x is even")),(0, ("x is odd")):} , Then f is:

Let ZZ be the set of integers and f : Zzto ZZ be defined by, f(x) =2x^(2) -3x +6. Then which of the following set is equal to the set {x:f(x)=8} ?

Let ZZ be the set of integers and f:ZZ rarr ZZ be defined by , f(x)=x^(2) . Find f^(-1) (16) and f^(-1) (-4)