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if a^2+b^2+c^2=20 and a+b+c=0 then find ...

if `a^2+b^2+c^2=20` and `a+b+c=0` then find `ab+bc+ca`

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If a^(2)+b^(2)+c^(2)=20 and a+b+c=0 find ab+bc+ca

If a^(2)+b^(2)+c^(2)=20 and a+b+c=0, find ab+bc+ca

If a^(2)+b^(2)+c^(2)=20 and a+b+c=9 , find ab+bc+ca .

If a^2+b^2+c^2=250 and ab+bc+ca=3, find a+b+c.

(i) If a^(2)+b^(2)+c^(2)=20 " and" a+b+c=0, " find " ab+bc+ac . (ii) If a^(2)+b^(2)+c^(2)=250 " and" ab+bc+ca=3, " find" a+b+c . (iii) If a+b+c=11 and ab+bc+ca=25, then find the value of a^(3)+b^(3)+c^(3)-3 abc.

(i) If a^(2)+b^(2)+c^(2)=20 " and" a+b+c=0, " find " ab+bc+ac . (ii) If a^(2)+b^(2)+c^(2)=250 " and" ab+bc+ca=3, " find" a+b+c . (iii) If a+b+c=11 and ab+bc+ca=25, then find the value of a^(3)+b^(3)+c^(3)-3 abc.

If a^(2)+b^(2)+c^(2)=24 and ab+bc+ca=-4, then find a+b+c

If a^(2)+b^(2)+c^(2)=250 and ab+bc+ca=3 find a+b+c

If a^(2)+b^(2)+c^(2)=250 and ab+bc+ca=3 find a+b+c