10:43
Exact Values for Trigonometric Ratios
Eddie Woo
10:33
Why Degrees?
5:20
Why is Trigonometry so important?
4:59
Manipulating the Trig Ratios in Geometry (example question)
6:09
The Basic Trig Ratios & their Reciprocals
3:44
Why are Sine & Cosine given their names?
10:53
Redefining the Trig Functions on the Unit Circle (1 of 2: The Basic Concept)
11:07
Redefining the Trig Functions on the Unit Circle (2 of 2: Understanding Non-Acute Angles)
13:14
How to Graph Trigonometric Functions (1 of 2: Sine)
11:39
How to Graph Trigonometric Functions (2 of 2: Cosine & Tangent)
11:04
Reading Values from Trigonometric Graphs
6:53
Odd & Even Functions (1 of 2: Introductory Examples)
6:19
Odd & Even Functions (2 of 2: Relevance to Trigonometry)
7:00
Cosine Rule: An Upgrade to Pythagoras' Theorem
11:25
Sine Rule: The Ambiguous Case
11:30
Why the Sine Rule Works (1 of 3: Acute Angles)
7:27
Why the Sine Rule Works (2 of 3: Right Angles)
6:13
Why the Sine Rule Works (3 of 3: Obtuse Angles)
11:46
3D Trigonometry: a notorious question (1 of 2: Setting up the diagrams)
5:44
3D Trigonometry: a notorious question (2 of 2: Working the numbers)
11:08
The Lighthouse (Challenging 3D Trig Question)
10:24
Introduction to Radians (1 of 3: Thinking about degrees)
9:19
Introduction to Radians (2 of 3: Defining a better way)
11:43
Introduction to Radians (3 of 3: Definition + Why Radians Aren't Units)
10:18
Radian Measure (1 of 4: The worth of Radians in Circles & Calculus)
10:17
Radian Measure (2 of 4: Finding ratio between arc length and radius - Why use 'pi'?)
5:40
Radian Measure (3 of 4: Finding the formula for the area of a sector in radians)
6:48
Radian Measure (4 of 4: Solving Trigonometry with Radians and advantages for calculus)
9:56
Circles and Radian Measure (Using Area of Triangle and Sector to find the Area of a Segment)
10:45
Trigonometric Functions: Angles of Any Magnitude (1 of 2: The unit circle)
11:26
Trigonometric Functions: Angles of Any Magnitude (2 of 2: Obtuse & reflex angles)
5:24
Meanings of the Trigonometric Ratios (1 of 4: Re-introducing the Unit Circle)
7:25
Meanings of the Trigonometric Ratios (2 of 4: Why is one of them called "tangent"?)
6:59
Meanings of the Trigonometric Ratios (3 of 4: Why is one of them called "secant"?)
7:13
Meanings of the Trigonometric Ratios (4 of 4: Dynamic visualisation)
6:37
Y11 Maths Ext 1 Quiz (3 of 3: Graphs of Trig Functions)
Introduction to Radians (1 of 3: Comparing measurement systems)
11:13
Introduction to Radians (2 of 3: Developing an initial sense)
6:38
Introduction to Radians (3 of 3: Formal definition & conversion)
9:23
Exact Values (1 of 4: Radians vs. Degrees)
12:05
Exact Values (2 of 4: Solving a basic trigonometric equation)
7:22
Exact Values (3 of 4: Using the unit circle for trigonometry)
5:17
Exact Values (4 of 4: Why "tan" is short for "tangent")
8:49
Graphs of Basic Trigonometric Functions (1 of 3: Investigating the unit circle with spaghetti)
7:43
Graphs of Basic Trigonometric Functions (2 of 3: The features of trigonometric curves)
8:11
Graphs of Basic Trigonometric Functions (3 of 3: Graphing examples)
8:12
3D Trigonometry Example (1 of 2: Setting up the triangles)
3D Trigonometry Example (2 of 2: Combining the information)
6:35
3D Trig Three Observer Problem (1 of 4: Setting up the diagram)
8:39
3D Trig Three Observer Problem (2 of 4: Determining ground distances)
10:02
3D Trig Three Observer Problem (3 of 4: Calculating ground angles)
9:46
3D Trig Three Observer Problem (4 of 4: Resolving the ambiguous case)
11:56
Circular Measure: Arc Length, Sector & Segment Area Formulas
8:36
Sine Rule - example test question
6:15
Cosine Rule - example test question
10:12
Dartboard Question (1 of 2: Area)
10:08
Dartboard Question (2 of 2: Percentage & perimeter)
13:21
Measuring a Wedge
12:23
Trigonometry in Right Triangles (5 of 5: Applied problems)
13:45
Trigonometry in Right Triangles (4 of 5: Exact values & reciprocals)
8:47
Trigonometry in Right Triangles (3 of 5: Finding an angle)
15:15
Trigonometry in Right Triangles (2 of 5: Evaluating ratios & angles)
11:00
Trigonometry in Right Triangles (1 of 5: Reviewing the ratios)
