B. 27 / 27
Explanation(x - 1/x)² = x² - 2 + 1/x² so x² + 1/x² = 25 + 2 = 27.
(x - 1/x)² = x² - 2 + 1/x² इसलिए x² + 1/x² = 25 + 2 = 27।
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