t có bng : x-1=2=1=-2=-1....x=3=2=-1=0 y-2=1=2=-1=-2...y=3=4=1=0 theo thứ tự nhé
minh la vinh ngo day minh thay nich khac , bng la gi vay ng ko ten
t có bng : x-1=2=1=-2=-1....x=3=2=-1=0 y-2=1=2=-1=-2...y=3=4=1=0 theo thứ tự nhé
minh la vinh ngo day minh thay nich khac , bng la gi vay ng ko ten
1 )Tim x, y thuoc Z
x + y = x.y
2) Tim x thuoc Z
(x + 1)+(x+3)+(x+5)+...+(x+99)=0(x-3)+(x-2)+(x-1)+...+10+11=11-12(x-5)+7(3-x)=530(x+2)-6(x-5)-24x=100Tim x, y thuoc Z biet : | x-2| + (x-y+1)^2 =0
tim x,y,z thuoc N sao cho 1/x+1/y+1/z=1/2
tim x y thuoc z biết | x -1| + |y | = 2
( x -1) mu 2 + y mu 2 = 4
tim x , y thuoc Z
|x+2|.|y-1|-4|y-1|=0
|x-2|+|(x-2).(y+5)|=0
cac ban oi giup minh voi
1.tim a,b thuoc Z,biet:a.(2b-3)=-6
2.cho x,y thuoc Z thoa man x mu 2 +y mu 2 chia het cho 3.chung to x va y chia het cho 3.
x-1/9+1/3=1/y+2
x/2+y/3=x+y/2+3
Tim x;y thuoc z
Help me!
Tim x,y thuoc Z biet
x^2=I5+y^2
tim x,y thuoc z biet
-24/-6 = x/3 = 4/y^2 = z^3/-2