Question

if x= 2-√3 find the value of x^2 +1/x^2?

Answer 1

Answer:

x^2= (2-√3)^2

=4+3-4√3

=7-4√3

put the value of x2 in equation x^2+1/x^2

7-4√3+1/7-4√3

6-4√3/7-4√3