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Trigonometric Identities and Formulae
Chapter 1
1 h 48 min
What is A.S.T.C?
20 min
Solving Trigonometric Equations
26 min
Solving Trigonometric Equations
9 min
Trigonometric Identities
27 min
More on Solving
9 min
A.S.T.C and Special Angles (Practice 1)
7 min
A.S.T.C, Special Angles and Trigonometric Identities (Practice 2)
3 min
A.S.T.C, Special Angles and Trigonometric Identities (Practice 3)
5 min
A.S.T.C and Trigonometric Identities (Practice 4)
2 min
Worksheet PDF
Answer PDF
Chapter 2
1 h 6 min
What are the Identities?
11 min
Solving Trigonometric Equations
12 min
Proving Trigonometric Identities
16 min
Solving Trigonometric Equations (Practice 1)
3 min
Solving Trigonometric Equations (Practice 2)
7 min
Proving Trigonometric Identities (Practice 3)
6 min
Proving Trigonometric Identities (Practice 4)
5 min
Proving Trigonometric Identities (Practice 5)
6 min
Worksheet PDF
Answer PDF
Chapter 3
1 h 32 min
How to Derive the Formula for sin (A + B) and sin (A - B)? (Optional)
9 min
How to Derive the Formula for cos (A + B) and cos (A - B)? (Optional)
7 min
How to Derive the Formula for tan (A + B) and tan (A - B)? (Optional)
5 min
Example 1: Application of Addition Formulae
6 min
What are the Double Angle Formulae?
7 min
Example 2: Double Angle Formulae
10 min
Example 3: Double Angle Formulae
4 min
Example 4: Double Angle Formulae
10 min
Double Angle Formulae for sin and cos (Practice 1)
7 min
Double Angle Formulae for sin and cos (Practice 2)
9 min
Double Angle Formulae for tan (Practice 3)
3 min
Addition Formulae for sin and cos (Practice 4)
3 min
Double Angle Formulae for sin and cos (Practice 5)
4 min
Double Angle Formulae for sin and cos (Practice 6)
8 min
Worksheet PDF
Answer PDF
Chapter 4
1 h 26 min
What is R-Formula?
11 min
Why is the R-Forumla Useful?
14 min
Trigonometric Identities and Quadrants (Practice 1)
9 min
Trigonometric Identities (Practice 2)
12 min
R-Formula (Practice 3)
10 min
R-Formula (Practice 4)
12 min
R-Formula and Sketching of sin and cos Graphs (Practice 5)
18 min
Worksheet PDF
Answer PDF