Question

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

Answer 1

Answer:

Given:

a=2+√3

The value of

a-1/a=2+√3-1/2+√3

=2+√3-1/2+√3×2-√3/2-√3

=2+√3-(2-√3) /4-3

=2+√3-2+√3

=2√3

I hope this is helpful for you.