If a+b+c=12 and a2+b2+c2=50, then ab + bc + ca = . – InterviewSolution

1.	If a+b+c=12 and a2+b2+c2=50, then ab + bc + ca = .
Answer» If $a + b + c = 12$ and $a^{2} + b^{2} + c^{2} = 50$ , then ab + bc + ca = .

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