Question

if x+1/x =√5 , find value of x²+1/x²

Answer 1

ya this time you posted right question dear...ur previous one is wrong......anyways here is ur answer

square both sides and apply the formula of (a+b)^2=a^2+b^2+2ab

u will get

x^2+1/x^2+2=5

therefore x^2+1/x^2=5-2=3

hope u get it

Answer 2

Hope it will help you .