solve 11-19 odd (analytic trigonometry)

10. csc4x - 4 csc2 x = 0 TIX 45. y = sin + 1 46. y = sin Tx + Cos TX 5 TT 2 (a) x = ( b) x= 6 y 3- In Exercises 11-24, solve the equation. 2 - 11. 2 cos x + 1 = 0 12. 2 sin x + 1 = 0 13. 3 csc x - 2 = 0 x NI - - 14. tan x + 3 = 0 2 3 2 NI 15. 3 sec2 x - 4 = 0 16. 3 cot2 x - 1 = 0 17. sin x(sin x + 1) = 0 18. (3 tan2 x - 1)(tan2 x - 3) = 0 47. y = tan2 T X - 3 T X - 4 6 48. y = sec4/ 19. ) 4 cos2 x - 1 = 0 20. sin x = 3 cos2 x 8 y