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Squaring x + y + z = 0 gives x2 + y2 + z2 + 2(xy + yz + zx) = 0. Since xy + yz + zx = 0, it simplifies to x2 + y2 + z2 = 0. ...

all the rational numbers xclass 9 maths chapter 3 the world of numbers solutionclass 9 maths ganita manjari chapter 3 question answersatisfy x + y + z = 0the world of numbers solved (2026-27)y)z