state gov BSSC LDC (Ex-Servicemen) Mock Test Series 2025 Quantitative Aptitude Trigonometry Circular Measure of Angles
\(\frac{\sin 20^\circ \times \cos 70^\circ + \cos 20^\circ \sin 70^\circ}{ \sin 23^\circ \rm cosec \ 23^\circ + \cos 23^\circ \sec 23^\circ} = ...\)
1
-1
2
\(\frac{1}{2}\)
3
\(-\frac{1}{2}\)
4
1