2010000814

Level: 
Project ID: 
2010000814
Source Problem: 
Accepted: 
0
Clonable: 
1
Easy: 
0
Assuming \(x\neq 0\), \(y\neq 0\), \(y\neq \pm 1\), simplify the expression: \[\left [\left ( \frac{y-1} {y}\right )^{2} : \left (\frac{x} {y+1} \right )^{2}\right ] : \frac{2(y^2-1)} {xy}\]
\(\frac{y^2-1} {2xy}\)
\( 2\)
\(\frac{y^2-1} {2}\)
\(\frac{y-1} {2}\)