9000083608 | math4u.vsb.cz

SubArea:

Polynomials and fractions

Level:

Project ID:

9000083608

Source Problem:

Accepted:

1

Clonable:

1

Easy:

0

Assuming

x y \neq - 1

, simplify the expression:

\frac{\frac{x - y}{1 + x y} + y}{1 - \frac{y (x - y)}{1 + x y}}

x

\frac{x (1 + y^{2})}{1 - y^{2}}

x - 1

x (1 + y^{2})