Question

x=2√2+√7/2√2-√7 then X-1/X=​

Answer 1

Answer:

x= 2√2+√7/2√2-√7

= 2√2+√7/2√2-√7 × 2√2+√7/2√2+√7

= (2√2+√7)^2/(2√2)^2-(√7)^2

= 8+4√14+7/8-7

= 15+4√14

1/X = 1/15+4√14 × 15-4√14/15-4√14

1/X = 15-4√14/(15)^2-(4√14)^2

1/X = 15-4√14/225-224

1/X= 15-4√14/1

1/X = 15-4√14

X-1/X = 15+4√14-(15-4√14)

X-1/X = 15+4√14-15+4√14

X-1/X = 4√14+5√14

X-1/X = 8√14

hope this helps you mark me as brainliest pls