Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If A, B, C, D are the angles of a cyclic quadrilateral, then what is the value of the following?
\(\sin \left( {\frac{{{\rm{A}}\,{\rm{ + }}\,{\rm{C}}}}{2}} \right)\, + \,\sin \left( {\frac{{{\rm{B}}\,{\rm{ + }}\,{\rm{D}}}}{2}} \right)\)
1
2
2
1
3
0
4
-1