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Show that Δ = |(1, 1, 1), (a, b, c), (a^2 - bc, b^2 - ca, c^2 - ab)| = 0

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Show that Δ = |(1, 1, 1), (a, b, c), (a2 - bc, b2 - ca, c2 - ab)| = 0

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 Applying C1: C1 - C2 and C2:  C2 - C3 we get

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