1.

If xy + yz + zx = 0, then the value of \((\cfrac{1}{x^2-yz}+\cfrac{1}{y^2-zx}+\cfrac{1}{z^2-xy})\)(1) 3 (2) 0 (3) 1 (4) x + y + z

Answer»

Correct option is (2) 0



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