Which of the following is the value of (x + 1/x)²?
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Correct answer: (E) None of the above
Explanation
(x + 1/x)² = x² + 2·x·(1/x) + 1/x² = x² + 1/x² + 2. None of the options has the +2 term.
From BPSC TRE 3.0 (2024) Computer Science Class 11-12 — Previous Year Paper
This is question 31 of BPSC TRE 3.0 (2024) Computer Science Class 11-12 — 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.
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