Question

If (x+(1/x))=4,the value of (x5+(1/x5)) is

Answer 1

Cubing the whole eqn we get x^3+1/x^3=60 then squaring that eqn we get x^5+1/x^5=3598
This problem is simply done by using identities (a+b)^2 and (a+b)^3