\

The determinant is \"\".

\

Interchange the rows \"\" and \"\"in the above determinant.

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\"\"

\

Interchange the rows \"\" and \"\" in the above determinant.

\

\"\"

\

\"\"

\

\"\"

\

Take out common factor \"\" from \"\".

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\"\"

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Substitute the value \"\".

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\"\"

\

\"\"

\

\"\".

\

\

\"\".