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Question Number 36154 by SammyKT last updated on 29/May/18

$$Q.Ifx\ne y\ne zand\left|\begin{array}{ccc}x& x^3& x^4-1\\ y& y^3& y^4-1\\ z& z^3& z^4-1\end{array}\right|=0$$$$$$$$Provethatxyz(xy+yz+zx)=(x+y+z)$$$$$$$$pleasehelp.$$

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