If a2+b2+c2=20 and a+b+c=0 then find ab+bc+ca || If a+b+c=9 and ab+bc+ca=40 then find a2+b2+c2
Class 9, Maths, Chapter - 2, Polynomials
Extra QUESTIONS | Easy Explanation
(i) If a2+b2+c2=20 and a+b+c=0 then find ab+bc+ca.
(ii) If a+b+c=9 and ab+bc+ca=40 then find a2+b2+c2.
(iii) If a2+b2+c2=250 and ab+bc+ca=3 find a+b+c.
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