state gov AP Police SI (Pre+Mains) Mock Test 2022 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
\(\frac{{{\rm{co}}{{\rm{s}}^2}33^\circ - {\rm{\;co}}{{\rm{s}}^2}57^\circ }}{{{\rm{si}}{{\rm{n}}^2}\frac{{21^\circ }}{2}{\rm{\;}} - {\rm{\;si}}{{\rm{n}}^2}\frac{{69^\circ }}{2}}} =\; ?\)
1
√3
2
√2
3
-√2
4
-√3