Các câu hỏi tương tự
tim cac so nguyen duong x,y,z thoa man x^2+y^3+z^4
tim cac so nguyen x,y,z thoa man dieu kien sau
x^2=y-1
y^2=z-1
z^2=x-1
cho x, y , z la cac so nguyen thoa man x . y - x. z + y.z - z^2 +1 =0 chung minh rang x+ y =0
tim cac so nguyen x,y,z biet y^2=y-1; x^2=x-1; z^2=z-1
cho các so tu nhien x,y,z,t nho nhat thoa man x/y=5/14;y/z=21/28;z/t=6/11.tim x,y,z,t
1. tim cac cap so nguyen duong (x, y) sao cho:
2 x3 + xy = 11
2. tim cac cap so nguyen duong (x, y, z)sao cho:
x + y + z = x*y*z
3. tim x thuoc z, biet;
|x| = -2003
|x| = |-2003|
minh dang can gap lam. chieu mai phai nop rui
tim cac so nguen x,y,z:x/y+y/z+z/x=y/x+z/y+x/z=x+y+z=3
cho x, y , z là các số nguyen thoa man x . y - x. z + y.z - z^2 +1 =0 chung minh rang x+ y =0
tim x,y,z la cac so nguyen
a) x-y=0,y+2z=1
b) x+y+z=7