SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

If 3x = sec A and \(\frac{3}{x}\) = tan A then 9 (x2 - \(\frac{1}{x^2}\)) is ______.

1
3
2
9
3
1
4
\(\frac{1}{9}\)
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