Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
sec4θ - sec2θ = _____
1
tan2θ.sec2θ
2
\(\rm \frac{\tan^2\theta}{\sec^2\theta}\)
3
cosec2 θ. cot2θ
4
\(\rm \frac{\cot^2\theta}{cosec^2\theta}\)