Решите уравнение
1)
6 2 x+4
- __ = 2-
x^2-1 x-1 x+1
2)
3 2x-1 2x+1
- =
x+2 x+1 x^2+3x+2
3)
2 x-4 1
+ =
x^2-4 x^2+2x x^2-2x
4)
4 3 12 1
- - = _
x+2 x-2 4-x^2 7
5)
4 1
_ + 5 = __
x x^2
6)
6-y y+3 y+5
- =
1-y^2 y-y^2 y+y^2
​

никто271    3   22.01.2020 08:03    0