(3x-2y)/4 = (2z-4x)/3 = (4y-3z)/2 = (12x-8y)/16 = (6z-12x)/9 = (8y-6z)/4 = (12x-8y + 6z-12x + 8y-6z)/(16+9+4) = 0
<=> 12x - 8y = 0 ; 6z - 12x = 0 ; 8y - 6z = 0
<=> x/2 = y/3 ; z/4 = x/2 ; y/3 = z/4
<=> x/2 = y/3 = z/4
Cho 3x-2y/4=2z-4x/3=4y-3z/2. CMR : x/2=y/3=z/4
Cho: 3x -2y/4=2z-4x/3=4y-3z/2
cmr: x/2=y/3=z/4
Cho 3x-2y/4 = 2z-4x/3 = 4y-3z/2. CMR: x/2 = y/3 = z/4
Cho x+16/9 = y-25/16 = z+9/25 và 2x^3-1 = 15. Tìm x, y, z
Cho (3x-2y)/4=(2z-4x)/3=(4y-3z)/2 và x+y-z=2
Cho 3x-2y/4=2z-4x/3=4y-3z/2. C/m x/2=y/3=z/4
cho 3x-2y/ 4=2z- 4x/3= 4y-3z/2 Chứng minh rằng x/2=y/3= z/4
Cho 3x-2y/4 = 2z-4x/3 = 4y-3z/2. chứng minh : x/2 = y/3 = z/4
cho 3x-2y/4 =2z-4x/3=4y-3z/2. chứng minh x/2=y/3=z/4
cho 3x-2y/4=2z-4x/3=4y-3z/2. C/M: x/2=y/3=z/4