dien dung sai
a/tich cua hai so nguyen duong la mot so nguyen duong
b/tich cua hai so nguyen am la mot so nguyen am
c/tich cua 2 so nguyen cung dau luon lon hon moi so do
d/tich cua hai so nguyen khac dau luon nho hon moi so do
e/neu tich hai so nguyen la mot so nguyen duong thi hai so do deu la so nguyen duong
f/neu tich hai so nguyen la mot so nguyen am thi hai so do deu la so nguyen am