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Name_______________________________ 11.4 Practice Solving Trigonometric Equations Verify that the given x-value is a solution of the equation. 5ð 1. 3 tan2 2x -1 = 0, x = 12 3. 2 cos2 x â 1 = 0, x = 5ð 4 2. 2 sin2 x â sin x = 0, x = 0 4. sec4 2x â 4 sec 2 x = 0 , x = 3 5ð Find the general solution to the equation. 5. â3 csc x â 2 = 0 6. 2 sin2 x â 1 = 0 7. 3 sec 2 x â 4 = 0 8. sin2 Ņē + sin Ņē = 0 9. â2 cos Ņē â 1 = 0 10. 7 sec x â 7 = 0 11. 3 sin x = sin x +1 12. csc2 x â csc x -2 = 0 Solve the equation in the interval 0 < x < 2Ï. 13. 2 cos2 x = -cos x 14. 3 sec2 x â 4 = 0 13. 2 cot4 x â cot2 x â 15 = 0 14. 2 sin4 x â sin2 x = 0 15. sec Ņē csc Ņē â 2 csc Ņē = 0 16. 3 tan3 x - tan x = 0 17. cos x csc2 x + 3 cos x = 7 cos x 18. 2 csc x + 17 = 15 + cscx 19. 3 sec2 x â 4 = 0 20. â2 cos x sin x â cos x = 0 21. â3 tan x = 3 tan x csc x - â3 tan x 22. 2 sin2 x â cos x -1 = 0