Question

if x= √2+1, find the value of x²+1/x²​

Answer 1

Answer:

10/3 or 3.33

Step-by-step explanation:

x=√2+1

by substituting x into the equation x²+1/x²

(√2+1)^2 + 1/(√2+1)^2

(√2)^2 +1 + 1/ ((√2)^2 +1)

2+1 + 1/(2+1)

3 +1/3

10/3

Answer 2

Answer:

Step-by-step explanation:

Please find the answer in the attachment