SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Algebra Identities

যদি \((x^2+\frac{1}{x^2})=7\), এবং 0 < x < 1 হয়, তাহলে \(x^2-\frac{1}{x^2} \) এর মান কত হবে?

1
3√5
2
4√3
3
-4√3
4
-3√5
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