Solve these equations, for 0 ≤ x ≤ 360°. Give answer in degrees.
1. cos x = 0.5
2. tan x = 1
3. sin (x − 30) = 0.5
4. sin 2x = 0
5. 2cos x = -2
6. tan2 x + 2tan x − 3 = 0
7. 2cos2 x = 1
Solve these equations, for 0 ≤ x ≤ 2π. Give answer in radians.
8. sin x = 0.35
9. cos x = -0.35
10. cos (x + 1) = 0.9
11. sin 2x = 0.2
12. 3sin x cos x − sin x = 0
13. tan (2x − 1) = 0.35
14. 2sin (2x − 3) = 1
Solve these equations, for 0 ≤ x ≤ 2π. Give answer in radians in terms of π.
15. sin 4x = 0
16. cos 2x = 0.5
17. 2cos (x -
) = 1
18. 2sin2 x = 2
19. sin 5x + sin x = 0
20. cos 7x − cos 3x = 0
