state gov TSPSC DAO (Divisional Accounts Officer) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
Find the value of the following expression.
12(sin4 θ + cos4 θ) + 18(sin6 θ + cos6 θ) + 78 sin2 θ cos2 θ
1
30
2
40
3
10
4
20