Question
`(sqrt(7) + sqrt(5))/(sqrt(7) - sqrt(5))` is equal to :
Answer: Option D
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`(sqrt(7) + sqrt(5))/(sqrt(7) - sqrt(5))`= `(sqrt(7) + sqrt(5))/(sqrt(7) - sqrt(5))` x `(sqrt(7) + sqrt(5))/(sqrt(7) + sqrt(5))`
`((sqrt(7) + sqrt(5))^2) /((7 - 5))` = `(7 + 5 + 2sqrt(35))/(2)` = `(12 + 2sqrt(35))/(2)` = ` 6 + sqrt(35)`
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