Tổng hợp công thức lượng giác trong toán học by https://padlet.com/lethilananh241000/8ury85wk1gbta55a en-us 2023-10-21 11:46:34 UTC 2023-10-23 09:12:23 UTC hello@padlet.com lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052069 2023-10-21 11:47:45 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052069 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052224 2023-10-21 11:48:09 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052224 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052312 2023-10-21 11:48:19 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052312 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052664 2023-10-21 11:49:07 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757052664 Ví dụ: lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757055342 2023-10-21 11:54:35 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757055342 Ví dụ: lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757057079 2023-10-21 11:58:14 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757057079 Ví dụ: lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757057990 Giải phương trình lượng giác: sin 2 x = cos 2 x + cos 2 3x]]> 2023-10-21 12:00:06 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757057990 Ví dụ: lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757058187 2023-10-21 12:00:33 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757058187 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757078992 Giải các phương trình cơ bản sau
a) cos2 x – 3cosx + 2 = 0

b) 1/(cos2 x) – 2 = 0

]]> 2023-10-21 12:41:31 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757078992 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757082583 2023-10-21 12:48:06 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757082583 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757084501 Biến đổi thành tổng: A = 2 sin⁡x.sin⁡2x.sin⁡3x]]> 2023-10-21 12:51:38 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757084501 lethilananh241000 https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757086442 Tính A. ]]> 2023-10-21 12:54:58 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757086442 Cho bài tập sau: https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757474918 Bài 1: Tính sin2a,cos2a,tan2a, biết: sina=1/3(pi/2<a<pi).]]> 2023-10-22 04:36:19 UTC https://padlet.com/lethilananh241000/8ury85wk1gbta55a/wish/2757474918