Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
যদি cos (x + y) = 0 এবং sin (x - y) = \(\frac{1}{2}\) হয়, যেখানে x, y ϵ \(\left[ {0,\,\,\frac{{\rm{\pi }}}{2}} \right] \) তাহলে cot (2x - y) এর মান কত ?
1
0
2
\(\frac{1}{2}\)
3
1
4
2