Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

If sec θ = 5x and tan θ = 5/x, then the value of 10(x2 - 1/x2) is:

1
\(\frac{2}{5}\)
2
\(\frac{1}{5}\)
3
2
4
\(\frac{3}{5}\)

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