1. х 4 + х 3 - 4х 2 - 4х = 0; 2. 2х 4 - 5х 2 + 2 = 0;
3. 27 / (х + 5) + 1 / (х + 5) = 2;
4. 3 / ((1 – х) · (2 – х)) ≥ 0;
5. Cos (х / 3) = -1, х € [-360°; 0];
6. 3 х + 1 + 3 х – 1 < 10;
7. log 1/3 (х 2 – 2х + 1) ≤ 2.

vladshumigayoypa3u    1   29.06.2020 19:45    0