If a+b+c=m and a2+b2+c2=n, then (ab+bc+ca)is – InterviewSolution

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1.	If a+b+c=m and a2+b2+c2=n, then (ab+bc+ca)is
Answer» $I f a + b + c = m and a^{2} + b^{2} + c^{2} = n, then (a b + b c + c a) i s$

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