C-03-Q025mediumsingle_mcqa2+b2+c2=?a^2 + b^2 + c^2 = ?a2+b2+c2=? (Corollary 7)a(a+b+c)2(a+b+c)^2(a+b+c)2b(a+b+c)2−2(ab+bc+ac)(a+b+c)^2 - 2(ab+bc+ac)(a+b+c)2−2(ab+bc+ac)c(a+b+c)2+2(ab+bc+ac)(a+b+c)^2 + 2(ab+bc+ac)(a+b+c)2+2(ab+bc+ac)d(a+b+c)2−(ab+bc+ac)(a+b+c)^2 - (ab+bc+ac)(a+b+c)2−(ab+bc+ac)ব্যাখ্যাRearranging (a+b+c)2=a2+b2+c2+2(ab+bc+ac)(a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ac)(a+b+c)2=a2+b2+c2+2(ab+bc+ac) isolates the sum of squares as a2+b2+c2=(a+b+c)2−2(ab+bc+ac)a^2+b^2+c^2=(a+b+c)^2-2(ab+bc+ac)a2+b2+c2=(a+b+c)2−2(ab+bc+ac).