SSC SSC CHSL (Tier I & Tier II) Mock Test Series 2025 (New) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
\(\frac{{sin\left( {78^\circ + \;\theta }\right) - cos\left( {12^\circ - \;\theta } \right) + \;(ta{n^2}70^\circ - cose{c^2}20^\circ }}{{sin25^\circ \;cos65^\circ + cos25^\circ \;sin65^\circ }}\) का मान है:
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-1
2
0
3
-2
4
2