2.13-bo'lim: Ratsional tengsizliklar

Quyidagi tengsizliklarning har birini yeching.

1. \( \displaystyle \frac{{4 - x}}{{x + 3}} > 0\) Yechim
2. \( \displaystyle \frac{{2z - 5}}{{z - 7}} \le 0\) Yechim
3. \( \displaystyle \frac{{{w^2} + 5w - 6}}{{w - 3}} \ge 0\) Yechim
4. \( \displaystyle \frac{{3x + 8}}{{x - 1}} < - 2\) Yechim
5. \( \displaystyle u \le \frac{4}{{u - 3}}\) Yechim
6. \( \displaystyle \frac{{{t^3} - 6{t^2}}}{{t - 2}} > 0\) Yechim