n2=aabb =11 . a0b = 11(100a + b) = 11(99a + a + b)
Mà aabb chia hết cho 11 nên a + b chia hết cho 11
1 <=a + b<=18 nên a + b = 11
n2=aabb =11 . a0b = 11(100a + b) = 11(99a + a + b)
Mà aabb chia hết cho 11 nên a + b chia hết cho 11
1 <=a + b<=18 nên a + b = 11
biet aabb la so chinh phuong . vay a + b = ...
biet aabb la so chinh phuong vay a+b = may
Biet aabb la so chinh phuong. Vay a+b=?
biet aabb la so chinh phuong khi do a+b=
tim a, b de A= aabb la so chinh phuong . Trong do aabb la 1 STN co 4 cs
biet aabb la so chinh phuong.vay a+b=
b, tim n de [n+10].[n+21]=124689
c, tim cac chu so a,b biet aabb la so chinh phuong
Tim so tu nhien A biet trong cac dieu kien cua A duoi day chi co hai dieu kien dung, mot dieu kien sai:
a. A+51 la so chinh phuong
b. A tan cung la 1
c. A-38 la so chinh phuong
tim so co 4 chu so abcd, biet rang abd la so chinh phuong, neu cong them 72 don vi thi duoc mot so chinh phuong