defence exam Agniveer Army Technical Mock Test Series 2025 Mathematics Trigonometry Trigonometric Identities
\(\sqrt{2 + \sqrt{2 \ +\ 2cos\ 4\theta}}\) का मान है?
1
2 sin θ
2
2 cos θ
3
sin θ
4
cos θ
\(\sqrt{2 + \sqrt{2 \ +\ 2cos\ 4\theta}}\) का मान है?