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Question 36Asked in BPSC TRE 3.0 (2024) Mathematics Class 9-10 + 7 more papers

If x + 1/x = 5, what is the value of x⁴ + 1/x⁴?यदि x + 1/x = 5, तो x⁴ + 1/x⁴ का क्या मान है?

यदि x + 1/x = 5, तो x⁴ + 1/x⁴ का क्या मान है?
  1. A525525
  2. B527527
  3. C529529
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (B) 527527

Explanation

x² + 1/x² = 5² − 2 = 23, and x⁴ + 1/x⁴ = 23² − 2 = 527.x² + 1/x² = 5² − 2 = 23 तथा x⁴ + 1/x⁴ = 23² − 2 = 527।

From BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper

This is question 36 of BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.

Asked in 8 papers