Question

Find
${a}^{3} - {b}^{3}$

Answer 1

Hey


HERE IS THE ANSWER

a/b+b/a=1

=(a^2+b^2)/ab=1

=a^2+b^2=ab

=a^2+b^2-ab=0

Now,a^3+b^3=(a+b)(a^2+b^2-ab)

   =(a+b)*0 (Because,a^2+b^2-ab=0)

   =0 Ans 

Hope it helps to you.