Let [z] mean the Greatest Integer less than or equal to z. Find a positive real number X, such that [X^n] is an even number whenever n is even, and [X^n] is an odd number whenever n is odd.
(In reply to
re(2): Uncle! by David Shin)
huh? I don't understand, David.
If r and s are both positive, then r^n + s^n is also positive.