Question

if X = √5 + 2 then x-1/X is​

Answer 1

Answer:

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Step-by-step explanation:

x - 1/x

(root 5+2 )- ( 1×root5-2/ 5-4)

root5+2 - root 5-2

2 root 5

Answer 2

Answer:

4

Step-by-step explanation:

1/X = √5 - 2

x-1/x = √5+2-√5+2

= 4