Question

if x=3-2√2
find x^2+1/x^2
​

Answer 1

Answer:

Value of x=3-2under root 2

Putting value of x in

X^2+1/x^2

(3-2 under root 2)^2+1/(3-2 under root 2)^2

So we can write it like

(3-2under root 2)(3-2under root 2)+1/(3-2under root 2)(3-2under root 2)

By solving we get

9-6under root 2+6under root 2+8+1/9-6under root 2+6under root 2+8

9-8/9-8

1/1

1

1