InterviewSolution
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f Ifab+ bc + ca 36 and2122a +b+ c85, find a + b+ c. |
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Answer» (a+b+c)² = a²+b²+c² + 2(ab+bc+ac)=> (a+b+c)² = 85+2(36) =157so, (a+b+c) = √157 |
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