Question

I will mark the correct ans as brainliest!
If a + b + c = 0 and a^2+ b^2 + c^2 =16, find the value of ab + bc + ca. If a^2 + b^2 + c^2 = 16 and ab + bc + ca = 10, find the value of a + b + c.

Answer 1

$\mathcal{\huge{\purple{\star\:Hayy \: Mate...!! \:\star}}}$

$<i>$
(a+b+c)2 = a2+b2+ c2+2ab+2 be + 2ca (0)2 =16 + 2(ab+bc+ca)

O =16+2(ab+bc+ca)

-16 = 2(ab+bc+ca)

-16/2 => ab+ be + ca

-8 = ab +bc +ca

$<b>$$<marquee>$❤️⭐I hope you mark as brainlist answer⭐❤️✨✨

Answer 2

hey my dear

mark as brainliest