Question

if a=2+√3 then find the value of a-1/a​

Answer 1

Step-by-step explanation:

$2 + \sqrt{3}$

Answer 2

Step-by-step explanation:

a=2+√3

1/a =(1/2+√3)(2-√3/2-√3)=2-√3

a - 1/a =2√3