सिद्ध कीजिए कि \[ \left|\begin{array}{lll} 1 & 1 & 1 \\ a & b & c \\ a^{3} & b^{3} & c^{3} \end{...
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सिद्ध कीजिए कि
\[
\left|\begin{array}{lll}
1 & 1 & 1 \\
a & b & c \\
a^{3} & b^{3} & c^{3}
\end{array}\right|=(a-b)(b-c)(c-a)(a+b+c)
\]
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