If a+b+c=9 and ab+bc+ca=40. Find the value of a2+b2+c2. – InterviewSolution

1.	If a+b+c=9 and ab+bc+ca=40. Find the value of a2+b2+c2.
Answer» If $a + b + c = 9$ and $a b + b c + c a = 40$ . Find the value of $a^{2} + b^{2} + c^{2}$ .

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