1. 正弦和余弦的基本关系:
– sin(A) = cos(90° – A)
– cos(A) = sin(90° – A)
– sin(2A) = 2 sin(A) sin(A)
– cos(2A) = 2 cos(A) cos(A)
2. 正弦和余弦的平方关系:
– sin^2(A) + cos^2(A) = 1
– sin(A) = ±√[1 – cos^2(A)]
– cos(A) = ±√[1 – sin^2(A)]
3. 正弦和余弦的半角公式:
– sin(A/2) = √[1 – cos^2(A/2)]
– cos(A/2) = √[1 – sin^2(A/2)]
4. 正弦和余弦的倍角公式:
– sin(A + B) = sin(A) cos(B) + cos(A) sin(B)
– cos(A + B) = cos(A) cos(B) – sin(A) sin(B)
5. 正弦和余弦的和差化积公式:
– sin(A + B) = sin(A) cos(B) + cos(A) sin(B)
– cos(A + B) = cos(A) cos(B) – sin(A) sin(B)
6. 正弦和余弦的积化和差公式:
– sin(A + B) = sin(A) sin(B) + cos(A) cos(B)
– cos(A + B) = cos(A) cos(B) – sin(A) sin(B)
7. 正弦和余弦的二倍角公式:
– sin(2A) = 2 sin(A) sin(A)
– cos(2A) = 2 cos(A) cos(A)
8. 正弦和余弦的三倍角公式:
– sin(3A) = sin(A) sin(A)
– cos(3A) = cos(A) cos(A)
9. 正弦和余弦的四次方公式:
– sin(4A) = 4 sin^3(A)
– cos(4A) = 4 cos^3(A)
10. 正弦和余弦的五次方公式:
– sin(5A) = 5 sin^4(A)
– cos(5A) = 5 cos^4(A)
11. 正弦和余弦的六次方公式:
– sin(6A) = 6 sin^5(A)
– cos(6A) = 6 cos^5(A)
12. 正弦和余弦的七次方公式:
– sin(7A) = 7 sin^6(A)
– cos(7A) = 7 cos^6(A)
13. 正弦和余弦的八次方公式:
– sin(8A) = 8 sin^7(A)
– cos(8A) = 8 cos^7(A)
14. 正弦和余弦的九次方公式:
– sin(9A) = 9 sin^8(A)
– cos(9A) = 9 cos^8(A)
15. 正弦和余弦的十次方公式:
– sin(10A) = 10 sin^9(A)
– cos(10A) = 10 cos^9(A)
16. 正弦和余弦的十一次方公式:
– sin(11A) = 11 sin^10(A)
– cos(11A) = 11 cos^10(A)
17. 正弦和余弦的十二次方公式:
– sin(12A) = 12 sin^11(A)
– cos(12A) = 12 cos^11(A)
18. 正弦和余弦的十三次方公式:
– sin(13A) = 13 sin^12(A)
– cos(13A) = 13 cos^12(A)
19. 正弦和余弦的十四次方公式:
– sin(14A) = 14 sin^13(A)
– cos(14A) = 14 cos^13(A)
20. 正弦和余弦的十五次方公式:
– sin(15A) = 15 sin^14(A)
– cos(15A) = 15 cos^14(A)
21. 正弦和余弦的十六次方公式:
– sin(16A) = 16 sin^15(A)
– cos(16A) = 16 cos^15(A)
22. 正弦和余弦的十七次方公式:
– sin(17A) = 17 sin^16(A)
– cos(17A) = 17 cos^16(A)
23. 正弦和余弦的十八次方公式:
– sin(18A) = 18 sin^17(A)
– cos(18A) = 18 cos^17(A)
24. 正弦和余弦的十九次方公式:
– sin(19A) = 19 sin^18(A)
– cos(19A) = 19 cos^18(A)
25. 正弦和余弦的二十次方公式:
– sin(20A) = 20 sin^19(A)
– cos(20A) = 20 cos^19(A)
26. 正弦和余弦的二十一次方公式:
– sin(21A) = 21 sin^20(A)
– cos(21A) = 21 cos^20(A)
27. 正弦和余弦的二十二次方公式:
– sin(22A) = 22 sin^21(A)
– cos(22A) = 22 cos^21(A)
28. 正弦和余弦的二十三次方公式:
– sin(23A) = 23 sin^22(A)
– cos(23A) = 23 cos^22(A)
29. 正弦和余弦的二十四次方公式:
– sin(24A) = 24 sin^23(A)
– cos(24A) = 24 cos^23(A)
30. 正弦和余弦的二十五次方公式:
– sin(25A) = 25 sin^24(A)
– cos(25A) = 25 cos^24(A)
31. 正弦和余弦的二十六次方公式:
– sin(26A) = 26 sin^25(A)
– cos(26A) = 26 cos^25(A)
32. 正弦和余弦的二十七次方公式:
– sin(27A) = 27 sin^26(A)
– cos(27A) = 27 cos^26(A)
33. 正弦和余弦的二十八次方公式:
– sin(28A) = 28 sin^27(A)
– cos(28A) = 28 cos^27(A)
34. 正弦和余弦的二十九次方公式:
– sin(29A) = 29 sin^28(A)
– cos(29A) = 29 cos^28(A)
35. 正弦和余弦的三十次方公式:
– sin(30A) = 30 sin^29(A)
– cos(30A) = 30 cos^29(A)
36. 正弦和余弦的三十一次方公式:
– sin(31A) = 31 sin^30(A)
– cos(31A) = 31 cos^30(A)
37. 正弦和余弦的三十二次方公式:
– sin(32A) = 32 sin^31(A)
– cos(32A) = 32 cos^31(A)
38. 正弦和余弦的三十三次方公式:
– sin(33A) = 33 sin^32(A)
– cos(33A) = 33 cos^32(A)
39. 正弦和余弦的三十四次方公式:
– sin(34A) = 34 sin^33(A)
– cos(34A) = 34 cos^33(A)
40. 正弦和余弦的三十五次方公式:
– sin(35A) = 35 sin^34(A)
– cos(35A) = 35 cos^34(A)
41. 正弦和余弦的三十六次方公式:
– sin(36A) = 36 sin^35(A)
– cos(36A) = 36 cos^35(A)
42. 正弦和余弦的三十七次方公式:
– sin(37A) = 37 sin^36(A)
– cos(37A) = 37 cos^36(A)
43. 正弦和余弦的三十八次方公式:
– sin(38A) = 38 sin^37(A)
– cos(38A) = 38 cos^37(A)
44. 正弦和余弦的三十九次方公式:
– sin(39A) = 39 sin^38(A)
– cos(39A) = 39 cos^38(A)
45. 正弦和余弦的四十次方公式:
– sin(40A) = 40 sin^39(A)
– cos(40A) = 40 cos^39(A)
46. 正弦和余弦的四十一次方公式:
– sin(41A) = 41 sin^40(A)
– cos(41A) = 41 cos^40(A)
47. 正弦和余弦的四十二次方公式:
– sin(42A) = 42 sin^41(A)
– cos(42A) = 42 cos^41(A)
48. 正弦和余弦的四十三次方公式:
– sin(43A) = 43 sin^42(A)
– cos(43A) = 43 cos^42(A)