9.4 Compound Angle Identities

📖 Chapter 9 Trigonometric Equations and Identities
🎥 47 videos
Total Videos
47
Playlists
1
Textbook Page
N/A
Grade Level
11

11mathHarcourt9.4

47 videos

1

001. Q1a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
2

002. Q1b

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
3

003. Q2a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
4

004. Q2b

Question
5

005. Q3a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
6

006. Q3b

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
7

007. Q4a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
8

008. Q4b

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
9

009. Q5

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
10

010. Q6a

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.easy
🎓 005. Double angle identity with both sin2x and cos2x
🎓 004. Double angle identity with cos2x ex1
🎓 003. Double Angle Identity on Reciprocal
🎓 002. Cos double angle formula
🎓 001. Introduction to Double Angle Formulas Sine Double Angle Formula
11

011. Q6b

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.easy
🎓 005. Double angle identity with both sin2x and cos2x
🎓 004. Double angle identity with cos2x ex1
🎓 003. Double Angle Identity on Reciprocal
🎓 002. Cos double angle formula
🎓 001. Introduction to Double Angle Formulas Sine Double Angle Formula
12

012. Q6c

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
13

013. Q6d

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.easy
🎓 005. Double angle identity with both sin2x and cos2x
🎓 004. Double angle identity with cos2x ex1
🎓 003. Double Angle Identity on Reciprocal
🎓 002. Cos double angle formula
🎓 001. Introduction to Double Angle Formulas Sine Double Angle Formula
14

014. Q7

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Sum Formula, Identity, prove identity.medium
🎓 001. Sum formula identity proof with Diff of Sq
🎓 002. Trig identity with Sum formula, Sine to Tan ratios
15

015. Q8a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
16

016. Q8b

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
17

017. Q8c

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
18

018. Q8d

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
19

019. Q9a

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Sum Formula, Identity, prove identity.easy
🎓 001. Sum formula proof for supplementary identity
🎓 002. Sum formula proof for cofunctional identity
20

020. Q9b

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Sum Formula, Identity, prove identity.easy
🎓 001. Sum formula proof for supplementary identity
🎓 002. Sum formula proof for cofunctional identity
21

021. Q9c

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Sum Formula, Identity, prove identity.easy
🎓 001. Sum formula proof for supplementary identity
🎓 002. Sum formula proof for cofunctional identity
22

022. Q9d

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
23

023. Q10a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Two.Ratios, find.Sum.Ratio
🎓 001. Given single angles, find Sin of sum
24

024. Q10b

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Two.Ratios, find.Sum.Ratio
🎓 001. Given single angles, find Sin of sum
25

025. Q10c

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
26

026. Q10d

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
27

027. Q11a

Question
Answer
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
🎬 7chhAQ_mNS0
▶ Watch
28

028. Q11b

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
29

029. Q12a

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.easy
🎓 005. Double angle identity with both sin2x and cos2x
🎓 004. Double angle identity with cos2x ex1
🎓 003. Double Angle Identity on Reciprocal
🎓 002. Cos double angle formula
🎓 001. Introduction to Double Angle Formulas Sine Double Angle Formula
30

030. Q12b

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.easy
🎓 005. Double angle identity with both sin2x and cos2x
🎓 004. Double angle identity with cos2x ex1
🎓 003. Double Angle Identity on Reciprocal
🎓 002. Cos double angle formula
🎓 001. Introduction to Double Angle Formulas Sine Double Angle Formula
31

031. Q12c

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Sum Formula, Identity, prove identity.medium
🎓 001. Sum formula identity proof with Diff of Sq
🎓 002. Trig identity with Sum formula, Sine to Tan ratios
32

032. Q12d

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.medium
🎓 001. Double Angle Identity, Busy double angles to single angle
33

033. Q12e

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.medium
🎓 001. Double Angle Identity, Busy double angles to single angle
34

034. Q12f

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, prove identity.medium
🎓 001. Double Angle Identity, Busy double angles to single angle
35

035. Q13

Question
36

036. Q14a

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
37

037. Q14b

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, given.Double.angle.Sin.Cos, rational, prove
🎓 001. Prove Trig identity with rational expression with both cos and sin double
38

038. Q14c

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
39

039. Q14d

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
40

040. Q15

Question
📚 Related Lectures
12.3.1 AdvFun, Trig Equation, given Two Ratios.Quadratic, find x
🎓 002. Quad trig equation, Tan and Sec
🎓 001. Two Ratio Quad Trig equation
41

041. Q16

Question
42

042. Q17a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
43

043. Q17b

Question
📚 Related Lectures
12.3.3 AdvFun, Double Angle IDENTITY, given Half Angle, prove identity
🎓 001. Proving Half Angle Identity
44

044. Q17c

Question
📚 Related Lectures
12.3 Advanced Function, Trigonometry, Double Angles, given Single Angle ratio, find.Double.Angle.Ratios
🎓 001. Introduction to Double Angles
🎓 003. Find double angle for Sine ratio given single angle
🎓 002. Given single cos, find double cos
45

045. Q18a

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
46

046. Q18b

Question
📚 Related Lectures
12.3.2 ADVFUN, TRIG, SUM FORMULA, given.Sin.Cos, expand.evaluate
🎓 001. Section Intro
🎓 003. Exact Value with Sine Sum Formula
🎓 002. Exact Value with Cos Sum Formula
47

047. Q19

Question