台灣黑皮歐巴桑的學習祕笈

(高二上數學)三角 1-4 和角公式與差角公式(3/6)   

中英文版(高二上數學)第一章第四節和角公式與差角公式(餘弦、正弦、正切的和角與差角公式)
EP.5 和差角公式 ｜第三冊 三角函數 | 高中數學 ｜108新課綱
https://www.youtube.com/watch?v=wBySVaglWiA

*EP.6 和差角公式補充 ｜第三冊 三角函數 | 高中數學 ｜108新課綱
https://www.youtube.com/watch?v=rVGklbhRwLQ

*EP.7 正切的和差角公式 ｜第三冊 三角函數 | 高中數學 ｜108新課綱
https://www.youtube.com/watch?v=AwRRJ9LU74M

#13 統測複習 第一冊_單元三[三角函數的應用]_和差角公式
https://www.youtube.com/watch?v=_v8wxYwWKAM

三角函數和角、差角公式的應用例題
https://www.youtube.com/watch?v=9uj_LQiLDz8

*高中_數學_差角公式_練習5
https://www.youtube.com/watch?v=qQEGHHqJtEk

*高中_數學_差角公式_練習5(另解
https://www.youtube.com/watch?v=_qFsAQmbXAk

*高中_數學_差角公式_練習6
https://www.youtube.com/watch?v=9fy9clHxQNI

*高中_數學_差角公式_練習9
https://www.youtube.com/watch?v=KGeJ-zs2mI4

*高中_數學_差角公式_練習9(另解)
https://www.youtube.com/watch?v=trExffai_68

*高中_數學_差角公式_練習11
https://www.youtube.com/watch?v=OOAmELwLmOE

*高中_數學_差角公式_練習12
https://www.youtube.com/watch?v=EvlwXoNxF5g

*高中_數學_差角公式_練習16
https://www.youtube.com/watch?v=FK3308JHNAo

*高中_數學_差角公式_練習17
https://www.youtube.com/watch?v=7yu9rTOQ4VQ

*102學測_數學解析_選填題第G題
https://www.youtube.com/watch?v=pJCzuzTUM_s

*The Exact Value for Tangent of 18 Degrees, tan(18)
https://www.youtube.com/watch?v=LHG8w7SDUe0

*The Exact Value for Tangent of 67.5 Degrees, tan(67.5)
https://www.youtube.com/watch?v=_RuKqALoxS4

*The Exact Value for Tangent of 7.5 Degrees, tan(7.5)
https://www.youtube.com/watch?v=9VeqJyFbp-A

*The Exact Value for Tangent of 22.5 Degrees, tan(22.5)
https://www.youtube.com/watch?v=iRg-wt_RPHk

*Find the exact values for tan 15 degrees and tan 195 degrees. Sum and Difference Formula
https://www.youtube.com/watch?v=jugpw0hv0bE

*How to find the exact value by using the sum of two angles formula with tangent
https://www.youtube.com/watch?v=6LE8DmmXrig

*Evaluating the exact value using sum formula for tangent, tan
https://www.youtube.com/watch?v=WmixzStHunk

*Finding the exact value for sine of 15 degrees using the half angle formula
https://www.youtube.com/watch?v=8DA6dOgnqCA

*Evaluating for the tangent of an angle using the difference formula, tan
https://www.youtube.com/watch?v=Cam_OpSOujw

*How to use the sum and difference formula for tangent
https://www.youtube.com/watch?v=42zwvQFIfGI

*Evaluating the exact value using sum formula for tangent, tan
https://www.youtube.com/watch?v=WmixzStHunk

Learn how to find the exact value of an angle using sum formula for tangent
https://www.youtube.com/watch?v=EIW9JHLvbkw

Trigonometry - Exact values of sin(A+B) etc : ExamSolutions
https://www.youtube.com/watch?v=Nc0ySihitKE

*Exact Values (4 of 4: Why "tan" is short for "tangent")
https://www.youtube.com/watch?v=_yBy8IfTCsA

Intro to Trigonometric Identities - part 1
https://www.youtube.com/watch?v=UIOu4BBwIps

Secant, Cosecant and Cotangent - (2 of 4: Trigonometric Identities)
https://www.youtube.com/watch?v=w8whFeSccX0

The Sum and Difference Formulas - derivations (3 of 4: Trigonometric Identities) (A level)
https://www.youtube.com/watch?v=3lUBIgS22kc

Sum and Difference Identities & Formulas - Sine, Cosine, Tangent - Degrees & Radians, Trigonometry
https://www.youtube.com/watch?v=sU2pyMR8GZ4

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