Question

if x=1+√2 then find the value of (x-1/x)3​

Answer 1

Step-by-step explanation:

x=1+√2

=(x-1/×)3

=(1+√2-1/1+√2)3

=[(1+√2)(1+√2)-1/(1+√2)]3

=(1+√2-1)3

=(√2)3

=3√2