Trigonometry
Helpful videos made by other instructors that coincide with our Math 150 textbook.
Chapter 1 Angle Basics
Angle Relationships and Types of Triangles
Animation: The Sum of the Interior Angles of a Triangle
Working with Degrees, Minutes, and Seconds
Animation: Angles in Standard Position
Determine if Two Angles Are Coterminal
Determine a Coterminal Angle Between 0 and 360 Degrees
Determine Positive and Negative Coterminal Angles
Chapter 2 Trigonometric Functions Using Right Triangles
Congruent and Similar Triangles
Introduction to Trigonometric Functions Using Triangles
Find Trig Function Values Using a Right Triangle - Length of Hypotenuse Missing
Determine What Trig Function Related Specific Sides of a Right Triangle
Determine Trig Function Value Given a Right Triangle
Determine the Length of a Side of a Right Triangle Using a Trig Equation
30-60-90 and 45-45-90 Reference Triangles
Trigonometric Function Values Using Angles in Standard Position
Introduction to Trigonometric Function Using Angles in Standard Position
Properties of Trig Functions: Domain, Range, and Sign in each Quadrant
Trig Identities: Reciprocal, Quotient, Pythagorean
Determine Trigonometric Function Values on the Calculator
Determine Trigonometric Function Values using Reference Angles and Reference Triangles.
Determine the Reference Angle for a Given Angle
Determine the Quadrant of the Terminal Side of An Angle Given Trig Function Signs
Determine the Area of a Triangle Using the Sine Function
The Unit Circle
Determine Trigonometric Function Values using the Unit Circle
Sine and Cosine Values Using the Unit Circle - Multiples of 30 degrees
Sine and Cosine Values Using the Unit Circle - Multiples of 30, 45 degrees
Determining Basic Trig Function Values Using The Unit Circle
Determining Trig Function Values Using The Unit Circle
Find a Point on the Unit Circle Given One Coordinate
Determining Trigonometric Function Values and Angles
Determine Trig Function Values Given a Point on the Terminal Side of an Angle
Determine Trig Function Values from Given Information
Angles that Have the Same Sine and Cosine Function Values
Find the Point on a Circle Given an Angle and the Radius
Find Trig Function Values Given the Cosine Value and Quadrant
Find Trig Function Values Given the Sine Value and Quadrant - Irrational
Find Trig Function Values Given the Tangent Value and Quadrant
Find Half Angle Trigonometric Function Values Given Cosecant of an Angle
Determine Angles that have the same Trig Function Value Using the Unit Circle
Determine Angles with the Same Trig Function Value
Angles that Have the Same Sine and Cosine Function Values
Find the Point on a Circle Given an Angle and the Radius
Solving Right Triangles
Intro to Inverse Trig Functions to solve right triangles
Determine the Measure of an Angle of a Right Triangle
Properties of Trig Functions: Domain, Range, and Sign in each Quadrant
Solving Right Triangles: Part 1: The Basics
Solve a Right Triangle Given an Angle and the Hypotenuse
Solve a Right Triangle Given an Angle and a Leg
Find the Reach of a Ladder - Right Triangle Application
Solving Right Triangles: Part 2: Applications
Find Height of Building Using Angle of Elevation and Angle of Depression
Determining an angle and other trig function values given a since trig function value
Solve a Right Triangle Using Inverse Trigonometric Functions
Chapter 3 Videos
Radian Measure and Applications or Radian Measure
Converting Angles in Degree Measure to Radian Measure
Convert Angles in Radian Measure to Degree Measure
Determining Coterminal Angles in Radian Measure
Sine and Cosine Values Using the Unit Circle - Multiples of pi/6 radians
Sine and Cosine Values Using the Unit Circle - Multiples of pi/4 radians
Determine Exact Trig Function Values With the Angle in Radians Using the Unit Circle
Determine Exact Trig Function Values With the Angle in Radians Using Reference Triangles
Determine Angles that have the Same Trig Function Value on the Interval [0, 360)
Arc Length and Area of a Sector
Arc Length and Application of Arc Length
Determine Arc Length of the Earth
Find the Angle that Subtends a Given Arc Length
Area of a Sector and Area Bounded by a Chord and Arc
Linear Velocity and Angular Velocity
Determine the Number or Revolutions Per Second of a Car Tire
Determine Angular and Linear Velocity
Determine Trig Function Values Using Reference Triangles
Sine and Cosine Values in Radians Using Reference Triangles - Multiplies of pi/6 and pi/3
Sine and Cosine Values in Radians Using Reference Triangles - Multiplies of pi/4
Sine and Cosine Values Using Reference Triangles - Degrees
Find Six Trig Function Values Using Reference Triangles - Negative Degrees
Find Six Trig Function Values Using Reference Triangles - Mult. of pi/6
Find Six Trig Function Values Using Reference Triangles - Mult. of pi/4
Chapter 4 Videos Graphing Trigonometric Functions
Graphing the Sine and Cosine Functions
Graph the Sine Function Using the Unit Circle
Animation: Graphing the Sine Function Using the Unit Circle
Animation: Graphing the Cosine Function Using the Unit Circle
Graphing the Tangent Function Using the Unit Circle and the Reciprocal Identity
Animation: Graphing the Tangent Function Using the Unit Circle
Graphing the Cosecant and Secant Functions
Graphing the Secant Function Using the Cosine Function
Ex: Graphing the Cosecant Function Using the Sine Function
Domain of the Secant and Cosecant Functions Using the Unit Circle
Graphing the Cotangent Function
Graphing Cosine, Sine, and Tangent on the TI84
Graphing Secant, Cosecant, and Cotangent on the TI84
Graphing Transformations of Trigonometric Functions
Amplitude and Period of Sine and Cosine
Horizontal and Vertical Translations of Sine and Cosine
Graphing Sine and Cosine with Various Transformations
Animation: Transformations of Sine in the form y = Asin(B(x – D)) + C
Describe the Transformations of a Trig Function from a Graph
Graphing a Transformation of Sine and Cosine
Graphing a Transformation of Sine and Cosine
Graphing a Transformation of Sine and Cosine
Graphing a Transformation of Sine and Cosine
Find the Equation of a Transformed Cosine Function - Form: Acos(Bx)
Find the Equation of a Transformed Sine Function - Form: Asin(B(x-D))
Find the Equation of a Transformed Cosine Function - Form: Acos(Bx)+C
Determining the Equations of Sine and Cosine Functions
Determine the Equation of a Transformed Sine Function From a Graph
Find a Trig Function from a Table of Values - No Phase Shift
Find a Trig Function from a Table of Values - With Phase Shift
Graphing Tangent and Cotangent over different Periods
Graphing a Transformation of Cosecant Function
Graphing the Tangent Function Over a Different Period
Graphing a Transformation of the Cotangent Function
Graph a Transformation of the Tangent Function (Period and Horizontal Shift)
Graph a Transformation of a Secant Function (Period and Horizontal Shift)
Find the Equation of a Transformed Cosecant Function From The Graph
Find the Equation of a Transformed Secant Function From The Graph