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Class 9 Mathematics Number Systems Real NumbersMedium

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What will be the denominator after rationalising ( \frac{\sqrt{5}-1}{\sqrt{5}+1} )?

Answer and explanation

Correct answer: (4)

Multiplying by the conjugate ( \sqrt{5}-1 ) makes the denominator (5-1=4). Use difference of squares in the conjugate method.

Related tags

Real Numbers Rationalisation Denominator Number Systems Mathematics Class 9 Mcq

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