state gov Rajasthan Animal Attendant (पशु परिचर) Mock Test 2023-24 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If sin2 x + sin x = 1, then what is the value of cos12 x + 3 cos10 x + 3 cos8 x + cos6 x?
1
-1
2
0
3
1
4
8
5
Question Not Attempted