state gov UKPSC Police SI Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
Which one of the following is a value of θ, if θ satisfies the equation tan 2θ tan 4θ - 1 = 0; \(0<\theta<\frac{\pi}{2} \) ?
1
\(\frac{\pi}{12} \)
2
\(\frac{\pi}{15} \)
3
\(\frac{\pi}{6} \)
4
\(\frac{\pi}{5} \)