railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
यदि tan θ = \(x - \frac{1}{4x}\), तो sec θ - tan θ किसके बराबर है:
1
\(-2x \) या \(-\frac{1}{2x}\)
2
\(2x\) या \(- \frac{1}{2x}\)
3
\(2x \) या \(\frac{1}{2x}\)
4
\(- 2x\) या \(\frac{1}{2x}\)