Các câu hỏi tương tự
viet so 43 duoi dang tong 2 so nguyen to a va b voi a<b khi do b =?
viet so 43 duoi dang tong hai so nguyen to a,b voi a<b. Khi do b=
Viet so 43 duoi dang tong cua hai so nguyen to a,b voi a<b. khi do b =?
viet so 43 duoi dang tong 2 so nguyen to a,b voi a<b.khi do b=
viet so 43 duoi dang hai so nguyen to a,b voi a<b.Khi do a=
viet so 43 co dang tong 2 so nguyen to a,b voi a<b vay a=
viet cac so sau duoi dang tong cua 2 so nguyen to :
a. 25
b. 74
c. 102
so 2009 co the viet duoc duoi dang tong cua 2 so nguyen to ko ? tai sao? giup minh voi
1) Mot so nguyen to chia cho 30 duoc so du la r.Tim r,biet r khong phai la so nguyen to.
2) Chung minh rang:
a/ So 17 khong viet duoc tong 3 hop so khong bang nhau.
b/Moi so le lon hon 17 deu viet duoc duoi dang 3 hop so khac nhau.