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Aptitude · Q379

Algebra

Competitive Exams · Aptitude · question 379

Q379

If x = √5 + 1 and y = √5 - 1, then what is the value of x^2y^2 + y^2x^2 + 4 [ x/y + y/x ] + 6?

If x = √5 + 1 and y = √5 - 1, then what is the value of
A.
31
B.
23√5
C.
27√5
D.
25
Answer

Answer: Option D

Solution

Answer: Option D
Solution: