Question

pls help its very urgent for me

Answer 1

Answer:

Given,

x= 5+2√6

then,

x+1/x= (5+2√6)+1/(5+2√6)

= [(5+2√6)²+1]/(5+2√6)

=[25+24+20√6+1]/(5+2√6)

= [ 50+20√6]/(5+2√6)

= [50+20√6]×(5-2√6)/[25-24]

= [250+100√6-100√6-240]

= 10 Ans.

(100√6 cancelled by each other )

Answer 2

solution☝️

10 is answer