Решить неравенства (50 )
1.
(y+4\leq[/0]
(5y+15\leq[/0]
2.
(8y-5< 6y+3
(y+3< 4y-9
3.
[-2]\leq[/3]-[4x]\leq[/5]
4.
(x^2+y^2=20
(3x+y=2
5.
(\frac{1}{x}-\frac{1}{y}=\frac{1}{6}
(2y-x=-1
6.
(xy-3y^2=-24
(xy+2y^2=21

Raimbek711    1   27.10.2019 15:32    0