यदि 𝒙+𝟏/𝒙 = √𝟐𝟎 हो, तो 𝒙−𝟏/𝒙 का मान ज्ञात कीजिए।

  • 1

    𝟐√𝟑

  • 2

    𝟐√𝟔

  • 3

    4

  • 4

    𝟑√𝟐

Answer:- 3

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