Các câu hỏi tương tự
CMR;3^x+1+3^x+2+...+3^x+100 chia het cho 120
Cho biet xyz=1
Tinh gia tri A=x/xy+x+1+y/yz+y+1+z/xz+z+1
tim x,y,z biet y+z+1=x+z+2/y=x+y-3/2=1/x+y+z
x/2=y/3=z/4 biet x+y+z=54. Tìm x; y ; z
tìm x,y,z biet:
x+1/2=y-2/-1=z+5/3 va x+2y+3z+28=0
giúp mình nha
tìm x,y,z biet:
x+1/2=y-2/-1=z+5/3 va x+2y+3z+28=0
giúp mình nha
tìm x,y,z biet:
x+1/2=y-2/-1=z+5/3 va x+2y+3z+28=0
giúp mình nha
tìm x y biet 2/3x=3/4y, 2y=1/5 z va x+y+z=1
Tìm x ,y ,z biet :
a, |x+3/4|+|y-1/5|+|x+y+z|=0
b, |3x-4|+|3y-5|=0
c,|x+3/4|+|y-2/5|+|z+1/2| <0
d, |x+1/5|+|3-y|=0
Tim x biet :
a) x-1/2=y-2/3=z-3/4 va 2/x+3/y-z