History, asked by bangtanarmy91, 6 months ago

express 4/√5-1 with rational denominator

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Answered by FairyLight

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Answer:

=> 4 / root 5 - 1 [Given]

=> 4 root 5 + 1 / 5 -1

=> 4 root 5 + 1 / 4

=> root 5 + 1

Explanation:

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