Các câu hỏi tương tự
tim tat ca cac so co 2 chu so xy thoa man so A chia het cho 37 voi A=100..00(2009 chu so 0) 100..00(2011 chu so 0) xy
tim tat ca cac so co 2 chu so xy thoa man so A chia het cho 37 voi A=100...00 2009 chu so 0 100...00 2011 CHU SO 0 xy
Bai 1.Tim x, y biet :
2x(3y-2)+(3y-2) = -55
Bai 2 .a) So sanh : -22/45 va -51/103
b) So sanh A = 2009^2009 +1 / 2009^2010 va B = 2009^2010-2/2009^2011-2
Bai 3 :
a)Tim so tu nhien co 3 chu so , biet rang khi chia so do cho cac so 25, 28,35thi duoc cac so du lan luot la 5,8,15
b)Tim x: (x+1)+(x+2)+(x+3)+...+(x+100)=205550
tim x thuoc N ,sao cho : 5x.5x+1.5x+2_< 100...0 : 218 (18 chu so 0)
cho dãy số tự nhiên liên tiếp khác 0: 2,4,6,8,......,10000
a, nếu viết liên tiế dãy số thì tya có dãy sô : a= 2468...10000 vay a co bao nhieu chu so
b chu so thu 2020 thuoc chu so nao thuoc so nao
c, chu so thu 2025 2026 thuoc so nao la chu so nao
bai 1 tim so nguyen duong nho nhat co 3 chu so , so nguyen a lon nhat co 2 chu so
bai 2: tim x thuoc Z biet
a, / x/ = -5
b, /x/= <7
c, /x/ = 4
d, /x/=0
tong cua ca chu so chan cua tap hop A={x thuoc N /1000<x<10000}
Cau 1:
- 2-(9-36)
Cau 2: tim cac so tu nhien n sao cho (2n+9) chia het cho (n+1)
Cau3:goi x la tong cac chu so cua so a =32010+2011, goi y la tong cac chu so cua so x va goi z la tong cac chu so cu y . tim z
1.Tim cac chu so x va y de so 1x8y2 chia het cho 36
2.tim cac gia tri nguyen cua n de phan so A=3.n+2/n-1 co gia tri la so nguyen
3.tim cac chu so x y thoa man
(x-2)^2.(x-3)^2=4
4.tim so tu nhien x biet
(x-5):3/100=20.x/100 +5