Math, asked by SanyaBhasin, 1 year ago

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Answered by Anonymous

Given x = 9 + 4√5, find √x - 1 / √x √x = √(9 + 4√5) √x = √(√5 + √4 + 2√(5x4)) √x = √(√5 + √4)2 √x = √5 + 2 1 / √x = 1 / (√5 + 2) rationalize we get 1 / √x = (√5 - 2) ∴ √x - 1 / √x = √5 + 2 - √5 + 2 = 4.

Hence it is proved that itbis Rational Number...

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SanyaBhasin: till then one more answer will come, how will i able to do that

SanyaBhasin: and the answer you have answered, i am not able to understand properly, so can u use pen and paper instead

SanyaBhasin: and edit up your answer

SanyaBhasin: i will see

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Please help, it's urgent..

i want step by step explanation.

no spamming