数学简单问题,打得好的有悬赏(10分!)肯定会加的1、x-y-z=0 x+2y-10z=0 x-y+z=0 求:x:y:z2、 计算(求不等式解集)πx>2x ax>4(a<0) mx<2m(m<0) mx+2<x
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![数学简单问题,打得好的有悬赏(10分!)肯定会加的1、x-y-z=0 x+2y-10z=0 x-y+z=0 求:x:y:z2、 计算(求不等式解集)πx>2x ax>4(a<0) mx<2m(m<0) mx+2<x](/uploads/image/z/8745836-68-6.jpg?t=%E6%95%B0%E5%AD%A6%E7%AE%80%E5%8D%95%E9%97%AE%E9%A2%98%2C%E6%89%93%E5%BE%97%E5%A5%BD%E7%9A%84%E6%9C%89%E6%82%AC%E8%B5%8F%EF%BC%8810%E5%88%86%21%EF%BC%89%E8%82%AF%E5%AE%9A%E4%BC%9A%E5%8A%A0%E7%9A%841%E3%80%81x-y-z%3D0+++++x%2B2y-10z%3D0++++++x-y%2Bz%3D0+++++++++++%E6%B1%82%EF%BC%9Ax%EF%BC%9Ay%EF%BC%9Az2%E3%80%81++++%E8%AE%A1%E7%AE%97%EF%BC%88%E6%B1%82%E4%B8%8D%E7%AD%89%E5%BC%8F%E8%A7%A3%E9%9B%86%EF%BC%89%CF%80x%EF%BC%9E2x+++++++++++++ax%EF%BC%9E4%EF%BC%88a%EF%BC%9C0%EF%BC%89++++++++++mx%EF%BC%9C2m%EF%BC%88m%EF%BC%9C0%EF%BC%89++++++mx%2B2%EF%BC%9Cx)
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