Question

if x is if x is equal to 2 root 3 + 2 root 2 find the value of one upon x x plus one upon X and X square + 1 upon x square​

Answer 1

Answer:

x=2+root3

1/x=1/2+root3

1/x=1/2+root3 × 2-root3/2-root3

1/x=(2-root3)/(2+root3)(2root3)

=2-root3/(2)^2-(root3)^2

1/x=2-root3/4-3

=2-root3/1

=2-root3

since

(x+1/x) = (2+root3)(2-root3)=4

(x+1/2)^2 = (4)^2