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\(\frac{x-2015}{2015}=\frac{x-2014}{2014}\Rightarrow x-\left(2015\cdot2014\right)=y-\left(2015\cdot2014\right)\)=\(x-4058210=y-4058210\)do tích trung tỉ = tích ngoại tỉ ta có:
\(2014x\cdot4058201=2015y\cdot4058201\)=\(\frac{2014x}{2015y}=\frac{4058201}{4058201}=1\Rightarrow\frac{x}{y}\cdot\frac{2014}{2015}=1\Rightarrow\frac{x}{y}=\frac{1}{\frac{2014}{2015}}=1\cdot\frac{2015}{2014}=\frac{2015}{2014}\)
vì ( x - 2014 )2014 \(\ge\)0 \(\forall\)x
( y - 2015 )2014 \(\ge\)0 \(\forall\)y
\(\Rightarrow\)( x - 2014 )2014 + ( y - 2015 )2014 \(\ge\)0 \(\forall\)x,y
Mà ( x - 2014 )2014 + ( y - 2015 )2014 = 0
\(\Rightarrow\)\(\hept{\begin{cases}\left(x-2014\right)^{2014}=0\\\left(y-2015\right)^{2014}=0\end{cases}}\)\(\Rightarrow\hept{\begin{cases}x=2014\\y=2015\end{cases}}\)
Vậy ( x ; y ) = ( 2014 ; 2015 )
Vì (x-2014)2014 \(\ge\) 0
(y-2015)2014 \(\ge\)0
=> (x-2014)2014 + (y-2015)2014 \(\ge\) 0
Mà (x-2014)2014 + (y-2015)2014 = 0
=> \(\hept{\begin{cases}\left(x-2014\right)^{2014}=0\\\left(y-2015\right)^{2015}=0\end{cases}\Rightarrow\hept{\begin{cases}x-2014=0\\y-2015=0\end{cases}\Rightarrow}\hept{\begin{cases}x=2014\\y=2015\end{cases}}}\)
\(\frac{x-2015}{2015}=\frac{y-2014}{2014}\Leftrightarrow\frac{x}{2015}-\frac{2015}{2015}=\frac{y}{2014}-\frac{2014}{2014}\Leftrightarrow\frac{x}{2015}-1=\frac{y}{2014}-1\)
\(\Leftrightarrow\frac{x}{2015}=\frac{y}{2014}\)
suy ra \(\frac{x}{y}=\frac{2015}{2014}\)
\(\left|x-2014\right|+\left|y-2015\right|=0\)
Vì: \(\left|x-2014\right|\ge0\)và \(\left|y+2015\right|\ge0\)
Nên \(\left|x-2014\right|+\left|y-2015\right|=0\)
\(\Leftrightarrow\orbr{\begin{cases}\left|x-2014\right|=0\\\left|y-2015\right|=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x-2014=0\\y-2015=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=0+2014\\y=0+2015\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=2014\\y=2015\end{cases}}\)
Vậy: ...................
~ Rất vui vì giúp đc bn ~
\(\frac{x-2015}{2015}=\frac{y-2014}{2014}=>\frac{x}{2015}-\frac{2015}{2015}=\frac{y}{2014}-\frac{2014}{2014}=>\frac{x}{2015}-1=\frac{y}{2014}-1\)
=>x/2015=y/2014
=>x/y=2015/2014
tick tớ nhé