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Show that |{:(bc-a^(2),,ca-b^(2),,ab-c^(...

Show that `|{:(bc-a^(2),,ca-b^(2),,ab-c^(2)),(ca-b^(2),,ab-c^(2),,bc-a^(2)),(ab-c^(2),,bc-a^(2),,ca-b^(2)):}|` =
`|{:(a^(2),,c^(2),,2ca-b^(2)),(2ab-c^(2),,b^(2),,a^(2)),(b^(2),,2ac-a^(2),,c^(2)):}|.`

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`|{:(bc-a^(2),,ca-b^(2),,ab-c^(2)),(ca-b^(2),,ab-c^(2),,bc-a^(2)),(ab-c^(2),,bc-a^(2),,ca-b^(2)):}|` is formed by the cofactors of matrix
`|{:(a,,b,,c),(b,,c,,a),(c,,a,,b):}|`.
`rArr |{:(bc-a^(2),,ca-b^(2),,ab-c^(2)),(ca-b^(2),,ab-c^(2),,bc-a^(2)),(ab-c^(2),,bc-a^(2),,ca-b^(2)):}|= |{:(a,,b,,c),(b,,c,,a),(c,,a,,b):}|^(2)`
`|{:(a,,b,,c),(b,,c,,a),(c,,a,,b):}||{:(a,,-c,,b),(b,,-a,,c),(c,,-b,,a):}|^(2)`
`|{:(a^(2),,c^(2),,2ca-b^(2)),(2ab-c^(2),,b^(2),,a^(2)),(b^(2),,2ac-a^(2),,c^(2)):}|.`
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