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[" If "x,y" are rational numbers such th...

[" If "x,y" are rational numbers such that "],[(x+y)+(x-2y)sqrt(2)=2x-y+(x-y-1)sqrt(6)],[" then "],[[" (A) "x=1,y=1],[" (B) "x=2,y=1],[" (C) "x=5,y=1],[" (D) "x&y" can take infinitely many values "]]

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