Question

If a/b + b/a =1 , then find the value of a³+b³.. Fast reply..

Answer 1

Hi friend,

a/b+b/a=1
=>a^2 +b^2/ab=1
=>a^2 +b^2 =ab
=>a^2-ab+b^2 =0
=>(a+b)(a^2 - ab+b^2) =0(a+b) [multipling (a+b) in both sides]
=>a^3 +b^3 =0

HOPE HELPS