tìm a biết:
a0a04+40a0a+a040a=10101*11*2
Tìm A biết:
a0a04+40a0a+a040a=10101*1*11*2
Các Bạn Giup Mình Nhé
a0a04+40a0a+a040a=10101x11x2
tìm y
y0y04 + 40y0y + y040y = 10101 * 11 +2
y = 9 nha bạn
bạn cứ thử xem
Tìm x: x0x04 + 40x0x + x040x=10101 x 11 x 2
Tìm x: x0x04 + 40x0x + x040x=10101 x 11 x 2
x0x04+40*0x+x040x=10101*11*2
* là dấu nhân
Rut gon
A = 10101 . ( 5 / 111111 + 5 / 222222 - 4 / 3 . 7 . 11 13 37 )
Qusetion 1
If a is a natural number divisible by 7 and a<90 then the greatest possible value of a is .....................
Question 2
b0b04 +40b0b+b040b=10101*11*2 b=
Chứng minh rằng:
a) ab + ba chia hết cho 11
b) ababab chia hết cho 10101
Bài 1: Rút gọn phân số:
A=\(\frac{11}{21.10^2+10^2}\)
B=\(\frac{3.5.7.11.13.37-10101}{1313130+20202}\)
\(A=\frac{11}{21.10^2+10^2}=\frac{11}{10^2.\left(21+1\right)}=\frac{11}{10^2.22}=\frac{11}{10^2.11.2}=\frac{1}{10^2.2}\)
\(B=\frac{3.5.7.11.13.37-10101}{1313130+20202}=\frac{\left(3.5.7.11.13.37\right).5-10101.1}{130.10101+10101.2}=\frac{10101.\left(5-1\right)}{10101.\left(130+2\right)}=\frac{4}{132}=\frac{1}{33}\)