Задание
Сложите дроби \(\Large \frac{a + 2}{a - 1}\) и \(\Large \frac{a +5}{1 - a}\) .
- \(\Large \frac{3}{1 - a}\)
- \(\Large \frac{2a + 7}{a - 1}\)
- \(\Large \frac{3}{a - 1}\)
- \(\Large \frac{2a + 7}{a^2 - 1}\)