Question

find the value of [x-1/x]³ if x =1 +√2​

Answer 1

Answer:20-12√2

Step-by-step explanation:[1+√2-1/1√2]^3

=[1/√2+1]^3

=[1(√2-1)/(√2+1)(√2-1)]^3

=[√2-1]^3

And then solve it further.