Các câu hỏi tương tự
tim x,y thuoc Z biet
|y|.|2x+3|=8
|2x+4|+|y-3|=0
|x-1|+|2y+7|=3
|x+5|+|2y+6| nho hon hoac bang 0
Cho x, y, z thuoc Z biet :
a/ /x/ + 1963 la gia tri nho nhat
b/ /x/ + /y/ + /z/ be hon hoac bang 0
Cho | x | lon hon hoac bang 3 ; | y | = 5 , x; y thuoc tap hop Z . tim x ; y
Tim x, y thuoc Z biet : | x + 45 - 40 | + | y + 10 - 11 | nho hon hoac bang 0
Tim x thuoc z
12 lon hon hoac bang /x/ <15
Tim x thuoc Z
|5x-2|be hon hoac bang 13
hay viet cac tap hop sau bang cach khac
A={ 9;11;13;...;99]
B={ 12 ; 24 ; 36 ;48}
M= { THANG 4 ; THANG 6 ;THANG 9 ; THANG 11}
N = { X THUOC N / X LON HON HOAC BANG 3 , LON HON HOAC BANG 10}
Q = { X THUOC N / X LON HON 0 ,BE HON 10}
Tim x thuoc Z biet :
a . | 2x - 5 | = 13
b. | 7x + 3 | = 66
c. | 5x - 2 | < hoac bang 13
Giup to voi
Tap hop A x thuoc N 2 lon hon hoac bang va be hon hoac bang 78.