{x/x" is an integer,"-(1)/(2)

If x is an integer, then (x +1) ^(4) – (x -1) ^(4) is always divisible by

Is the integer x odd? (1) 2(y+x) is an odd integer. (2) 2y is an odd integer.

Show that the following pair of sets are equal A={x : x is an integer such that x^2 B= {x : x is an integer such that -2 le x le 2 }

If A={x : x=2n+1,\ n in Z}\ a n d\ B={x : x=2n ,\ n in Z} , then AuuB={x : x\ is an odd integer }\ uu{x : x is an even integer }={x : x is an integer }=Zdot

If ={x:x=2n+1,n in Z} and B={x:x=2n,n in Z} then A uu B={x:x~ is~ an~ odd~ integer}~ uu{x:x is an even integer }={x:x is an integer }=Z .

If x is an integer, then (x + 1)^(4) - (x-1)^(4) is always divisible by

If x + 1/x = 2cos theta , then for any integer n, x^(n) + 1/x^(n) =

If x^2 + ax + b is an integer for every integer x then