Сократите дробь \(\Large \frac{1 + b^2 - 2b}{b^2 - 1}\) .

• \(\Large \frac{b - 1}{b + 1}\)
• \(\Large \frac{1 - b}{b + 1}\)
• \(-2b\)
• \(\Large \frac{1 + b}{b - 1}\)