(x-y)^{3}+(y-z)^{3}+(z-x)^{3}=k(x-y)(y-z)(z-x) \text { then }\left(\fr – InterviewSolution

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1.	(x-y)^{3}+(y-z)^{3}+(z-x)^{3}=k(x-y)(y-z)(z-x) \text { then }\left(\frac{k-1}{2}\right)^{2018}
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