\(\frac{x}{3}=\frac{4}{y}\Leftrightarrow x.y=3.4=12\)
Vậy x.y =12
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\(\frac{x}{3}=\frac{4}{y}\Leftrightarrow x.y=3.4=12\)
Vậy x.y =12
Tim x,bietx/1×2+x/2×3+x/3×4+...+x/2006×2007=2006/2007
cau 1,(n^2-7)\(⋮\)n+3
cau 2 tim x;y;z
bietx-y=-9
y-z=-10
z+x=11
tim x.y biet (3^2x)^y=27^4
tim x;y biet x+x.y+y=3
2x=3y va x.y =-7 tim x va y
x/2=y/3=z/5 va x.y .z=-240
ai lam minh tick tim x va y va z nha
tim x y biet x2-5.y=x.y-4.x+1-
tim x,y biết x+x.y+2.y=3
tim x,y biet x.y +2x=3
tim x, y nguyen thoa man : 3.x.y + x = 2.y