由已知可得x=1/4,y=1从而求分式值为-1/12
急@#!#24已知1/x-1/y=3,求分式2x+3xy-2y/x-2xy-y的值
1个回答
相关问题
-
1.已知1/x-1/y=3,求分式2x+3xy-2y/(x-2xy-y)的值
-
已知1/x+1/y=3,求分式3x-2xy+3y/x+xy+y的值
-
已知1/x-1/y=5,求分式2x+3xy-2y/x-2xy-y的值
-
已知1/x+1/y=5,求分式2x-3xy+2y/x+2xy+y的值
-
已知1/X—1/Y=4,求分式3X+XY—3Y/X—2XY—Y的值.
-
已知1/x+1/y=2,求分式3x-7xy+3y/2x-5xy+2y的值
-
已知[1/x-1y]=3,则分式[2x+3xy-2y/x-2xy-y]的值为( )
-
已知[1/x-1y]=3,则分式[2x+3xy-2y/x-2xy-y]的值为( )
-
已知[1/x-1y]=3,则分式[2x+3xy-2y/x-2xy-y]的值为( )
-
已知[1/x-1y]=3,则分式[2x+3xy-2y/x-2xy-y]的值为( )