Question

If a+ b+ c = 9 and ab + bc + ca = 36, find a^2 + b^2+c^2 .

Answer 1

Answer:

a^2+b^2+c^2=(a+b+c)^2-2(ab+bc+ac)

=9^2-2(36)

= 81-72

=9

Answer 2

Ur answer is in the attachment .

Hope this helps u .

mark as brainlist