If x + 1/x = 5 then what is x² + 1/x²?
यदि x + 1/x = 5 हो तो x² + 1/x² का मान क्या होगा?
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Correct Answer
B. 23 / 23
Explanation(x + 1/x)² = x² + 2 + 1/x² so 25 - 2 = 23.
(x + 1/x)² = x² + 2 + 1/x² इसलिए 25 - 2 = 23।