4 JEE Main 2020 Trigonometric Ratios & Identities previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Trigonometric Ratios & Identities chapter of Mathematics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Trigonometric Ratios & Identities chapter hub.
If L = sin 2 π 16 - sin 2 π 8 and M = cos 2 π 16 - sin 2 π 8
If the equation cos 4 θ + sin 4 θ + λ = 0 has real solutions for θ then λ lies in interval
If 2 s i n α 1 + c o s 2 α = 1 7 and 1 - c o s 2 β 2 = 1 10 ,   α ,   β ∈ 0 ,…
The value of cos 3 π 8 . cos 3 π 8 + sin 3 π 8 . sin 3 π 8 is: