Wyrażenie , określone dla i , jest równe
x2−x+1x2−x\displaystyle \frac{x^2-x+1}{x^2-x} x2−xx2−x+1\displaystyle \frac{x^2-x+1}{x^2-x}
x2−x−1x2−x\displaystyle \frac{x^2-x-1}{x^2-x} x2−xx2−x−1\displaystyle \frac{x^2-x-1}{x^2-x}
x−1x2−x\displaystyle \frac{x-1}{x^2-x} x2−xx−1\displaystyle \frac{x-1}{x^2-x}
x2−x−1x−1\displaystyle \frac{x^2-x-1}{x-1} x−1x2−x−1\displaystyle \frac{x^2-x-1}{x-1}
71adce0f-3db6-4cb0-97c6-0ef6b34bd43c
(stara formuła)
