Question


A.


B.


C.


D.


Correct option is D

Given:  
5+151\frac{\sqrt{5}+1}{\sqrt{5}-1}   
Concept Used:  
​To simplify this, we can multiply both the numerator and the denominator by the conjugate of the denominator, which is 5+1\sqrt{5} + 1
5+1\sqrt5 +15+1
, to remove the square root from the denominator.​
Solution:

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