If x + 1/x = 3 then what is x² + 1/x²?
यदि x + 1/x = 3 हो तो x² + 1/x² का मान क्या होगा?
Show answer and explanation
Correct Answer
B. 7 / 7
Explanation(x + 1/x)² = x² + 2 + 1/x² so 9 - 2 = 7.
(x + 1/x)² = x² + 2 + 1/x² इसलिए 9 - 2 = 7।