Question

if a= 2+√3 find the value of a-1/a​

Answer 1

Answer:

(2+√3)-1/2+√3 = 1+√3/2+√3 = 1/2 amsw2e.

Answer 2

a=2+√3

1/a=1/2+√3×2-√3/2-√3

=2+√3/(2)^2-(√3)^2

2+√3/4-3

2+√3/1

1/a=2+√3

a-1a= 2+√3-(2+√3)

= 2+√3-2-√3

=2-2

=0