1.

If a square + b square + c square - ab-bc-ca=0 prove a=b=c​

Answer»

if we give VALUES for them for example a=2 b=2 c=2 as a square + b square + c square - ab-bc-ca=0    2 square + 2 square + 2 square - 2 x 2 - 2 x 2 -2 x 2=   4 + 4 + 4 - 4 - 4 - 412-120as this is TRUE  a square + b square + c square - ab-bc-ca=0a=b=c2=2=2hope you understood.please mark me as BRAINLIEST.



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