For real a, b and c if a2 + b2 + c2 = ab + bc + ca, then find the valu – McqOptions

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1.	For real a, b and c if a2 + b2 + c2 = ab + bc + ca, then find the value of (a + b + c)2
A.	9a2
B.	81a2
C.	27a2
D.	243a2
Answer» B. 81a2

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