1.

Using properties of determinants, prove that: ∣∣∣∣1+a1111+b1111+c∣∣∣∣=abc+bc+ca+ab

Answer» Using properties of determinants, prove that:

∣∣
∣
∣
1+a1111+b1111+c∣∣
∣
∣
=abc+bc+ca+ab


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