state gov Bihar Vidhan Sabha ASO Mock Test 2024 Mathematics Quadratic Equations

If \({\left( {{\rm{x}} + \frac{1}{{\rm{x}}}} \right)^2} = 5\) and x > 0, then what is the value of \({{\rm{x}}^3} + \frac{1}{{{{\rm{x}}^3}}}\) ?

1
2√5
2
3√5
3
4√5
4
5√5
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