Teaching AP DSC School Assistant 2025 Mock Test Series Mathematics Trigonometry Properties of Triangles
यदि त्रिभुज ABC में \(\frac{{2\cos A}}{a} + \frac{{\cos B}}{b} + \frac{{2\cos C}}{c} = \frac{a}{{bc}} + \frac{b}{{ca}}\) तो कोण A का मान क्या है?
1
\(\frac{\pi }{3}\)
2
\(\frac{\pi }{4}\)
3
\(\frac{\pi }{2}\)
4
\(\frac{\pi }{6}\)