Find a+ b + c; if a2+b2+c2=83 and ab+bc+ca=71 – InterviewSolution

1.	Find a+ b + c; if a2+b2+c2=83 and ab+bc+ca=71
Answer» Find a+ b + c; if $a^{2} + b^{2} + c^{2} = 83 a n d a b + b c + c a = 71$

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