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Mohit

· started a discussion

· 1 Months ago

wrong solution.. (Question: 246374.0 )

Rationalization is incorrect

Question:
If \(x=\cfrac{\sqrt{3}+1}{\sqrt{3}-1}\)  and \(y=\cfrac{1}{x}\) . Find the value of \(\cfrac{x^3+\cfrac{1}{x^3}+8xy}{x^3-y^3}\)
Options:
A) \(\cfrac{26\sqrt{3}}{45}\)
B) \(\cfrac{2\sqrt{3}}{3}\)
C) \(2\sqrt{3}\)
D) 1
Solution:

Ans: (b)


piyoosh roy

· commented

· 1 Months ago

it is wrongly written but value after rationalisation is correct
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