it suffices to show if is not even, then is not even.
so assume is not even, so that for some integer n, then .....
same approach as aboveif a^2 is uneven, then prove that a is uneven too
by the way, "odd" means "uneven" and it sounds nicer.
Let be a rational number and be an irrational number. what can you say about their sum?And another problem:
rational + irrational number = irrational number
PLS HELP ME!!!