Question: Prove that DA^2*BC+ DB^2*CA+ DC^2*AB+ AB*BC*CA= 0 when A,B,C,D are collinear points

Prove that DA^2*BC+ DB^2*CA+ DC^2*AB+ AB*BC*CA= 0 when A,B,C,D are collinear points

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To prove the equation DA2 cdot BC DB2 cdot CA DC2 cdot AB AB cdot BC cdot CA 0 when A B C and D are ... View full answer

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