Các câu hỏi tương tự
ti so cua a va b bang 1 1/2 .Tim hai so do biet rang a-b=8
tim so nguyen x biet
a.3+x=7
b.x+5=0
c.x+9=2
tim 2 so co hieu bang 43 biet rang them so thu nhat 12 don vi va them so thu 2 26 don vi thi duoc 2 so moi co tong bang 247
tim 2 so co tich bang 8010 biet rang neu giu nguyen thua so thu nhat va tang thua so thu 2 8 don vi thi duoc tich moi la 9434
tim 3 so biet tong bang 210.6/7 so thu nhat bang 9/11 so thu hai bang 2/3 so thu ba
tim mot so nhien co 2 chu so biet lay so do chia cho tong cac chu so cu no ta uoc thuong la 7 du 9
So sanh A va B biet rang:
\(A=\frac{10^{15}+1}{10^{16}+1}\) \(B=\frac{10^{16}+1}{10^{17}+1}\)
TOÁN 6 NHA
Tim so tu nhien x biet:
1 phan 2+1 phan 6+1 phan 12+...+1 phan x(x+1)=2008 phan 2009
tim gia tri lon nhat cua bieu thuc :
a) C= 5+ 15/ 4 I 3x+7 I +3
b) D= 2 I 7x+5I +11/ I 7x+5I +4