Question

If X= 3+2√2,find the value of x^2 + 1/x^2​

Answer 1

Answer:

34

Step-by-step explanation:

X= 3+2√2

1/X= 1/3+2√2= 3-2√2  ( by rationalising)

x+1/x= 6

(x +1/x)^2 = 36

x^2 + 1/x^2​ +2 =36

x^2 + 1/x^2=34