Question

answer this please 1st ques

Answer 1

Given that a + b + c = 0

We know that a^3 + b^3 + c^3 = (a + b + c)(a^2 + b^2 + c^2 - ab - bc - ca) + 3abc

                        a^3 + b^3 + c^3 = (0)(a^2 + b^2 + c^2 - ab - bc - ca) + 3abc

                        a^3 + b^3 + c^3 = 0 + 3abc

                        a^3 + b^3 + c^3 = 3abc.


Hope this helps!

Answer 2

Hi,

Please see the attached file!

Thanks