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A2+ab+b2=25 {b^2+bc+c^2=49}b2+bc+c2=49{c^2+ca+a^2=64}c2+ca+a2=64Then, find the value of(a+b+c)²-100 = ????No copied answers. ✔️ |
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Answer» Formula,(a+b+C) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ca⇒(a+b+c) 2 =a 2 +b 2 +c 2 +2(ab+bc+ca)Given,ab+bc+ca=10,a 2 +b 2 +c 2 =16⇒(a+b+c) 2 =16+2(10)a+b+c= 16+20 =6 |
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