Question

Can you solve this problem with proper explanation:​

Answer 1

Answer:

hope you can understand

Step-by-step explanation:

Answer 2

Answer: option b) 4

Step-by-step explanation:

x=√5+2

Then, 1/x= √5+2= (√5+2)×(√5-2)/(√5-2)

= (√5-2)/[(√5)^2-2^2)]= (√5-2) /5-4

=√5-2

So, x-1/x= √5+2-(√5-2) = √5+2-√5+2= 4