सारणिकों के गुणधर्मों का उपयोग करके सिद्ध कीजिए कि:
$\left|\begin{array}{lll}x & x^{2} & y z \\ y & y^{2} & z x \\ z & z^{2} & x y\end{array}\right|=(x-y)(y-z)(z-x)(x y+y z+z x)$

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(N/A) माना $\Delta=\left|\begin{array}{lll}x & x^{2} & y z \\ y & y^{2} & z x \\ z & z^{2} & x y\end{array}\right|$.
$R_{2} \rightarrow R_{2}-R_{1}$ और $R_{3} \rightarrow R_{3}-R_{1}$ लागू करने पर:
$\Delta=\left|\begin{array}{ccc}x & x^{2} & y z \\ y-x & y^{2}-x^{2} & z x-y z \\ z-x & z^{2}-x^{2} & x y-y z\end{array}\right|$
$R_{2}$ से $(y-x)$ और $R_{3}$ से $(z-x)$ उभयनिष्ठ लेने पर:
$\Delta=(y-x)(z-x)\left|\begin{array}{ccc}x & x^{2} & y z \\ -1 & -(x+y) & z \\ 1 & z+x & -y\end{array}\right|$
$R_{3} \rightarrow R_{3}+R_{2}$ लागू करने पर:
$\Delta=(y-x)(z-x)\left|\begin{array}{ccc}x & x^{2} & y z \\ -1 & -(x+y) & z \\ 0 & z-y & z-y\end{array}\right|$
$R_{3}$ से $(z-y)$ उभयनिष्ठ लेने पर:
$\Delta=(y-x)(z-x)(z-y)\left|\begin{array}{ccc}x & x^{2} & y z \\ -1 & -(x+y) & z \\ 0 & 1 & 1\end{array}\right|$
$R_{3}$ के अनुदिश विस्तार करने पर:
$\Delta=(y-x)(z-x)(z-y) [0 - 1(x z + y z) + 1(-x^{2}-x y + x^{2})]$
$\Delta=(y-x)(z-x)(z-y) [-(x z + y z) - x y]$
$\Delta=-(y-x)(z-x)(z-y)(x y+y z+z x)$
चूँकि $-(y-x) = (x-y)$ और $-(z-y) = (y-z)$,अतः:
$\Delta=(x-y)(y-z)(z-x)(x y+y z+z x)$.
अतः,परिणाम सिद्ध हुआ।

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