1.

If a, b and c are real numbers and Δ=∣∣∣∣b+cc+aa+bc+aa+bb+ca+bb+cc+a∣∣∣∣=0, Show that either a+b+c=0 or a=b=c.

Answer»

If a, b and c are real numbers and Δ=
b+cc+aa+bc+aa+bb+ca+bb+cc+a
=0
, Show that either a+b+c=0 or a=b=c.



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