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Multiple Choice Question

If x + (1/x) = 3, find the value of x^2 + (1/x^2).यदि x + (1/x) = 3 है, तो x^2 + (1/x^2) का मान ज्ञात कीजिए।

  • A
    7
    7
  • B
    9
    9
  • C
    11
    11
  • D
    5
    5
Explanation:
(x + 1/x)^2 = x^2 + 1/x^2 + 2 = 9. Therefore, x^2 + 1/x^2 = 9 - 2 = 7.
सूत्र (x + 1/x)^2 = x^2 + 1/x^2 + 2 का प्रयोग करने पर उत्तर 7 आता है।

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This question belongs to the set "UKSSSC VDO/Patwari/Lekhpal Full Length Mock Test – 2". Click below to read detailed notes and attempt the full quiz.

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