Question

5. If a+b+c=0 then the value of a cube + b cube (a3+b3) is *by



plz give me correct ans​

Answer 1

Since, a

3

+b

3

+c

3

−3abc=(a+b+c)(a

2

+b

2

+c

2

−bc−ca−ab)

Given, a+b+c=0

∴a

3

+b

3

+c

3

−3abc=0

∴a

3

+b

3

+c

3

=3abc

Option B is correct.