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If p+q=12 and pq=22, then find p2 +q2 . |
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Answer» Given, p+q=12 and pq=22 We know that, (p+q)2 =p2 +q2 +2pq ... (i) By putting the given values in equation (i), (12)2 =p2 +q2 +2(22) 144=p2 +q2 +44 144—44=p2 +q2 100=p2 +q2 So. the value of p2 +q22 is 100. |
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