Show that the function `f: N->N` given by, `f(n)=n-(-1)^n` for all `n in N` is a bijection.

Show that the function f:N rarr N given by,f(n)=n-(-1)^(n) for all n in N is a bijection.

The funciton f: N to N given by f(n)=n-(-1)^(n) for all n in N is

Show that the function f:N rarr N, given by f(n)=n- (-1)^(n), AA n in N is a bijection.

The function f:N rarr N given by f(n)=n-(-1)^(n) is

The function f: N to N defined by f(n) =2n+3 is

Show that the function f: N rarr N defined by f(x)= 2x + 3 , where x in N , is not bijective.

Show that the function f : N rarr N defined by f(n){((n+1)/2 if n is odd),(n/2 if n is even):} is onto but not one-one.

Show that the function f:N rarr Z, defined by f(n)=(1)/(2)(n-1) when n is odd ;-1/2 n when n is even is both one-one and onto