defence exam Indian Coast Guard Assistant Commandant (GD/CPL) 2025 Test Series Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If tan2 θ = 1 - a2, then the value of sec θ + tan3 θ cosec θ is:
1
\((2-a)^{{3} \over 2}\)
2
\((a^2 - 1)^{{3} \over 2}\)
3
\((2 - a^2)^{{3} \over 2}\)
4
\(a^{{3} \over 2}\)