Ta có :
\(\frac{-6}{12}=\frac{x}{8}=\frac{-7}{y}=\frac{z}{-18}=\frac{-1}{2}\)
\(\Rightarrow\hept{\begin{cases}\frac{x}{8}=\frac{-1}{2}\Rightarrow x=\left(-4\right)\\\frac{-7}{y}=\frac{-1}{2}\Rightarrow y=14\\\frac{z}{-18}=\frac{-1}{2}\Rightarrow z=9\end{cases}}\)
Vậy ...
bai 1 tim cac so nguyen x,y biet
a,x/3=7/y b,x/y=-3/11 c,x/y-1=5/-19
bai 2 tim cac so nguyen x,y,z,t biet
12/-6=x/5=-y/3=z/-17=-t/-9
1}tim cac so nguyen x,y,z biet
x/5=-12/50
2/y=11/-66
-3/6=x/-2= -18/y=-z/24
các bạn ơi dấu / biểu thị cho phần nha giúp mk vs
tim cac so nguyen x,y,z biet
-8/x =y/35=72/126 =-z/-91
tim cac so nguyen x,y,z biet y^2=y-1; x^2=x-1; z^2=z-1
tim so nguyen x,y,z biet: -4/8=x/-10=-7/y=z/-24
tim cac so nguyen x,y,z.
-4/8=x/-10=-7/y=z/-24
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
x/18=-98/y=-14/z=-t/102=u/-78
Tim cac so nguyen x,y,z,t,u
tim x,y,z la cac so nguyen
a) x-y=0,y+2z=1
b) x+y+z=7
