engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If tan3θ⋅tan7θ = 1, where 7θ is an acute angle, then find the value of cot15θ.
1
1
2
-1
3
\(-\sqrt3\)
4
\(\sqrt3\)