cho x/(a+2b-c)=y/(2a+b+c)=z/(4b+c-4a) . Chứng minh a/x+2y-z = b/2x+y+z = c/4y+z-4x
nếu x\a+2b+c=y\2a+b-c=z\4a-4b+c
cm a\x+2y+z=b\2x+y-z=c\4x-4y+z
Cho a, b, c, x, y, z khác 0 thỏa mãn (x/a-2b+z)=(y/2a-b -c)=(z/4a+4b+c). CMR (a/x+2y+z)=(b/z-y-2x)=(c/4x-4y+z)
Cho x/(a+2b+c)=y/(2a+b-c)=z/(4a-4b+2c)
Chứng minh a/(x+2y-z)=b/(2x+y-z)=c/(4x-4y+z)
Cho x/a+2b+c = y/2a +b-c = z/4a -4b+c
Chung minh : a/x+2y+z = b/2x+y-z = c/4x-4y +z
Chứng minh rằng nếu x/ a + 2b + c = y/ 2a + b - c = z/ 4a - 4b +c thì a/x + 2y + z = b/ 2x + y -z = c / 4x -4y +z
Chứng minh rằng: Nếu x/(a+2b+c)=y/(2a+b-c)=z/(4a-4b+c) Thì a/(x+2y+z)=b/(2x+y+z)=c/(4x-4y+z)
Chứng minh nếu x / a + 2b + c = y / 2a + b - c = z / 4a -4b + c thì a / x + 2y + z = b / 2x + y -z = c / 4x - 4y + z
CMR : Nếu x/a+2b+c = Y/2a+b-c = z/4a-4b=c
Thì a/x+2y+z = b/2x+y-z = c/4x-4y+z
