left| {,begin{array}{*{20}{c}}{1/a}&{{a^2 | vedclass

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(d)$\left| {\,\begin{array}{*{20}{c}}{1/a}&{{a^2}}&{bc}\{1/b}&{{b^2}}&{ca}\{1/c}&{{c^2}}&{ab}\end{array}\,} ight|$$ = \fra

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(d)$\left| {\,\begin{array}{*{20}{c}}{1/a}&{{a^2}}&{bc}\{1/b}&{{b^2}}&{ca}\{1/c}&{{c^2}}&{ab}\end{array}\,} ight|$$ = \frac{1}{{abc}}\,\left| {\,\begin{array}{*{20}{c}}1&{{a^3}}&{abc}\1&{{b^3}}&{abc}\1&{{c^3}}&{abc}\end{array}\,} ight| = \frac{{abc}}{{abc}}\left| {\,\begin{array}{*{20}{c}}1&{{a^3}}&1\1&{{b^3}}&1\1&{{c^3}}&1\end{array}\,} ight| = 0$

$\left| {\,\begin{array}{*{20}{c}}{1/a}&{{a^2}}&{bc}\\{1/b}&{{b^2}}&{ca}\\{1/c}&{{c^2}}&{ab}\end{array}\,} \right| = $

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