решение
нет (только равные если на равные).
докозательство:
х/у=(х-у) /х
х*х=у*(х-у)
х^2=xy-y^2
х^2-xy+y^2=0
х^2-xy+y^2=0
(х^2-2xy+y^2)+xy=0
(х^2-2xy+y^2)=-xy
(x-y)^2=-xy, а квадрат всегда есть число положительное
ответ нет
I love playing with a ball, but most of all I love football . As they say , football, soccer and football again ! I play this game from spring to late autumn in sportmaydachyku and school stadium. And in the winter I 'm in the indoor football hall of the sports complex. I was invited back our school physical education teacher , who leads classes there, too . Football - a very interesting game . It has a maximum speed , intelligence, accuracy reactions endurance. Whatever they said , and football coaches not only the feet but also the body as a whole. The players are also very hardened men chase a ball for the fresh air of early spring to late autumn. Also, football is a team game and develop unity and team spirit. And most of this game beckons me its unrivaled excitement! I am following the European and world football championship. I am very pleased that the last European Championship , Euro 2012, it was held in Ukraine and Poland. We are not daddy missed a single game on TV. Of course , I really hoped that the team of Ukraine will come out at least the quarterfinals . Unfortunately , this did not happen .
I love playing with a ball, but most of all I love football . As they say , football, soccer and football again ! I play this game from spring to late autumn in sportmaydachyku and school stadium. And in the winter I 'm in the indoor football hall of the sports complex. I was invited back our school physical education teacher , who leads classes there, too . Football - a very interesting game . It has a maximum speed , intelligence, accuracy reactions endurance. Whatever they said , and football coaches not only the feet but also the body as a whole. The players are also very hardened men chase a ball for the fresh air of early spring to late autumn. Also, football is a team game and develop unity and team spirit. And most of this game beckons me its unrivaled excitement! I am following the European and world football championship. I am very pleased that the last European Championship , Euro 2012, it was held in Ukraine and Poland. We are not daddy missed a single game on TV. Of course , I really hoped that the team of Ukraine will come out at least the quarterfinals . Unfortunately , this did not happen .
нет (только равные если на равные).
докозательство:
х/у=(х-у) /х
х*х=у*(х-у)
х^2=xy-y^2
х^2-xy+y^2=0
х^2-xy+y^2=0
(х^2-2xy+y^2)+xy=0
(х^2-2xy+y^2)=-xy
(x-y)^2=-xy, а квадрат всегда есть число положительное
ответ нет