台灣黑皮歐巴桑的學習祕笈

中英文版(高二上數學)第一章第四節和角公式與差角公式(半角公式)

*EP.10 半角公式 ｜第三冊 三角函數 | 高中數學 ｜108新課綱
https://www.youtube.com/watch?v=9e0o_ZcaqvQ

*3.23 半角公式推導及應用
https://www.youtube.com/watch?v=gwjOvJHOwjg

高中_數學_惠文高中_三角函數_半角公式
https://www.youtube.com/watch?v=SUPf8pITL_s

*高中_數學_惠文高中_三角函數_倍角、半角公式練習4
https://www.youtube.com/watch?v=3qgsU9zioik

高中_數學_差角公式_觀念8 半角公式
https://www.youtube.com/watch?v=DLf-thgNXZU

*高中_數學_差角公式_範例15
https://www.youtube.com/watch?v=BenumiLd0G8

*高中_數學_差角公式_範例16
https://www.youtube.com/watch?v=HaP_Mjr5tRc

*高中_數學_差角公式_範例17
https://www.youtube.com/watch?v=wUb9DXlOn4c

*高中_數學_差角公式_範例18
https://www.youtube.com/watch?v=OaT-TvYsTSA

*高中_數學_差角公式_演練16
https://www.youtube.com/watch?v=JTI1ypxGQKg

*高中_數學_差角公式_演練17
https://www.youtube.com/watch?v=12-dt9iLXPs

*高中_數學_差角公式_演練18
https://www.youtube.com/watch?v=P4Lp_YJyUeQ

*高中_數學_差角公式_練習13
https://www.youtube.com/watch?v=HV7mTZ5mgn4

*高中_數學_差角公式_練習13(另證)
https://www.youtube.com/watch?v=ht9Sj0hdPcw

*高中_數學_差角公式_練習14
https://www.youtube.com/watch?v=Fg4XWlgnnzw

*高中_數學_差角公式_演練15
https://www.youtube.com/watch?v=Jzbbi9IOXwk

*高中_數學_差角公式_練習20
https://www.youtube.com/watch?v=uEZdIjPEujA

*Right Triangle Trigonometry and Half Angle Identities & Formulas
https://www.youtube.com/watch?v=vEU25NlpaXA

*Half Angle Formulas & Identities - Evaluating Trigonometric Expressions
https://www.youtube.com/watch?v=9YI69okba3c

Trigonometry Identities - half angles (1) : ExamSolutions
https://www.youtube.com/watch?v=RL7qB7tHAuQ

Trigonometry - Identities half angles (2) : ExamSolutions
https://www.youtube.com/watch?v=w5vvBAQkCc0

*Half-angle identities...positive or negative?
https://www.youtube.com/watch?v=bDKRwgTKIoc

*The Double-Angle Formulas | proof without words| mathocube|
https://www.youtube.com/watch?v=2yRAh9gqUw0

*Half Angle Tangent Formulas (visual proof; trigonometry)
https://www.youtube.com/watch?v=XIC7SIdl7pI

*Half-angle identities - problem type 1
https://www.youtube.com/watch?v=LwuVN8QTMkU

*Half-angle identities: Problem type 2
https://www.youtube.com/watch?v=urakcVTcWRY

Double and Half Angle Formulas | Analytic Trig | Pre-Calculus
https://www.youtube.com/watch?v=eTdKgsyCmHs

部分資料來源: 學習吧
https://www.learnmode.net/knowledge/version?p=26#focus