If a2 + b2 + c2 ab - bc - ca = 0 , prove that a=b=c - Maths - Polynomials

Question

If a2 + b2 + c2 ab - bc - ca =
0 , prove that a=b=c

Lalit Mehra · Accepted Answer

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If a2 + b2 + c2 ab - bc - ca = 0 , prove that a=b=c .