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Project ID:
9000083608
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Za predpokladu, že \(xy\neq - 1\), zjednodušte výraz: \[\frac{ \frac{x-y}
{1+xy}+y}
{1-\frac{y(x-y)}
{1+xy} }\]
\(x\)
\(\frac{x(1+y^{2})}
{1-y^{2}} \)
\(x - 1\)
\(x(1 + y^{2})\)