Question

If a= 2 + root 3 find the value of a-1/a

Answer 1

Step-by-step explanation:

if a=2+root 3

so , =a-1/a

=2+root3 -1/2+root3

taking lcm

=(2+root3×2+root3)-1/2+root 3

=(4+3)-1/2+root 3

=7-1/2+root 3

=6/2+root3