Question

From class 9 , plz give my genuine answer​

Answer 1

Answer:   8-2√7/6

Step-by-step explanation:

√7-1/√7+1

first conjugate

=(√7-1)(√7-1)/(√7+1)(√7-1)

=(√7-1)^2/ (√7)^2-1

=7+1-2√7/7-1

= 8-2√7/6