VMLC
Release-50
Home
Courses
Workshops
Public Resources
MPE
Search Videos
Math Learning Center
Sign In
Tags:
Cosine
Unit Circle
Sine
Trigonometry
Trigonometry Series
Trig Functions with the Unit Circle
Author:
Hannah Solomon
This video shows how to find the exact values of trigonometric functions using points on the unit circle.
Related Videos (200)
The Graph of Tangent
Using the unit circle to sketch the graph of the tangent function
The Graphs of the Reciprocal Trig Functions
Graphing the reciprocal trig functions cosecant, secant, and cotangent
Deriving the Cofunction Trig Identities
Using the difference identities of sine and cosine to derive the cofunction identities
Deriving the Double Angle Trig Identities
Using the sum identities of sine and cosine to derive the double angle identities
Sine, Cosine, and Tangent
Explaining the trigonometric ratios of right triangles for sine, cosine, and tangent
The Graph of Cosine
Using the unit circle to sketch the graph of the cosine function
The Graph of Sine
Using the unit circle to sketch the graph of the sine function
Solving Trig Equations Using Identities Exercise 2
Solving a trig equation with sine and cosine using aPythagorean Identity
Solving Trig Equations Using Identities Exercise 5
Solving a trig equation with sine and cosine using trig identities
Solving Trigonometric Equations Exercise 2
Solving a trigonometric equation with sine and cosine by factoring
Transformations of Trig Graphs Exercise 3
Writing the sine and cosine functions for a given graph
Trig Functions with the Unit Circle Exercise 3
Finding the exact values of cosine and cotangent for given angles using the unit circle
Trig Functions with the Unit Circle Exercise 4
Finding the exact values of sine and secant for several given angles using the unit circle
Trig Functions with the Unit Circle Exercise 5
Finding the angles where sine has a given value using the unit circle
Trig Functions with the Unit Circle Exercise 6
Finding the angle where secant has a given value and tangent is positive
Using Identities to Find Exact Trig Values Exercise 3
Using a Double Angle Identity to find the exact value of an expression with sine and cosine
Using Identities to Find Exact Trig Values Exercise 4
Using the Half-Angle Identities to find the exact values of sine, cosine, and tangent
Deriving the Half-Angle Trig Identities
Using the double angle identities for cosein to derive the half-angle identities for sine and cosine
Area Between Curves: MATH 172 Problems 1-3
Interpreting integrals to represent areas between curves
Evaluating All Six Trigonometric Functions
Finding the values of all six trigonometric functions of an angle given a right triangle
Evaluating the Other Trigonometric Functions Given Sine
Evaluating the other five trigonometric functions for an acute angle given the value of sine
Evaluating the Other Trigonometric Functions Given Sine (2)
Evaluating the other five trigonometric functions given sine and that tangent is negative
Integrating Powers of Sine and Cosine
Using trigonometric identities to integrate powers of sine and cosine
Integration by Substitution: MATH 171 Problems 4-6
Using u substitution to evaluate integrals and prove facts about logarithms and integrals and
Integration Using Partial Fractions: MATH 172 Problems 8 & 9
Finding a partial fraction decomposition and integrating using partial fractions
Inverse Trigonometric Functions: MATH 151 1.5 Problems 9-12
Properties and derivatives of inverse trigonometric functions
Inverse Trigonometric Functions: MATH 151 Problems 9-12
Properties and derivatives of inverse trigonometric functions
Inverse Trigonometric Functions: MATH 171 Problems 4-6
Properties of inverse trig functions and the derivative of arctangent
MLC WIR 20B M151 week10 #3
Converting parametric equations into a Cartesian equation
MLC WIR 20B M151 week3 #05
Finding a Cartesian equation for a parametric curve
MLC WIR 20B M151 week3 #08
Using vectors to find the magnitude and direction of a resultant force
MLC WIR 20B M151 week3 #13
Evaluating compositions of trigonometric and inverse trigonometric functions
Proving Trigonometric Identities: MATH 172 Problems 3 & 4
Proving trigonometric identities useful for integration
Solving an Equation with Sine and Cosine
Solving a trigonometric equation with sine and cosine on a given interval
Solving Problems with Trig Exercise 2
Using trig to find an angle in a right triangle with two given sides
Solving Trig Equations Using Identities Exercise 4
Solving a trig equation with sine and tangent using a trig identity
Solving Trig Equations Using Identities Exercise 6
Solving a trig equation with cosine using trig identities
Solving Trigonometric Equations Exercise 1
Finding all solutions to a trigonometric equation with sine
Solving Trigonometric Equations Exercise 4
Solving a trigonometric equation with tangent and sine by factoring
Transformations of Trig Graphs Exercise 1
Graphing a period of a transformed sine function
Transformations of Trig Graphs Exercise 2
Graphing a period of a transformed cosine function
Trig Functions with the Unit Circle Exercise 1
Finding the exact value of tangent for several given angles using the unit circle
Trig Functions with the Unit Circle Exercise 2
Finding the exact value of secant, cosecant, and cotangent using the unit circle
Trigonometric Limits Example 1
Solving a limit example with a trigonometric functions
Trigonometric Limits Example 2
Solving a limit example with a trigonometric function
Trigonometric Limits Example 3
Evaluating a trigonometric limit using trigonometric identities
Trigonometry Derivatives and the Chain Rule: MATH 171 Problems 1-3
Proving the derivatives of trigonometric functions and that sine is continuous
Using a Rotation Map
Using a rotation map matrix to rotate a 2-dimensional vector by the angle \(\pi\)
Using Identities to Find Exact Trig Values Exercise 1
Using the Sum and Difference Identities to find the exact value of cosine
Using Identities to Find Exact Trig Values Exercise 2
Using the Sum Identity for Trig to find the exact value of sine
Vectors and Derivatives (Product Rule): MATH 171 Problems 1-3
Proving facts about the derivatives of vector functions including the product rule
WIR 20B M152 V5
Integrating a function with sine using u-substitution
WIR 20B M152 V86
Converting parametric equations into a Cartesian equation and graphing
WIR5 20B M150 V10
Evaluating trigonometric functions given a point on the terminal side of an angle
WIR5 20B M150 V4
Evaluating all six trigonometric functions for angles in degrees and radians
WIR5 20B M150 V5
Evaluating all six trigonometric functions for a right triangle
WIR5 20B M150 V6
Evaluating all six trigonometric functions for a right triangle
WIR5 20B M150 V8
Using trigonometry to determine the edge lengths of a right triangle
WIR5 20B M150 V9
Evaluating trigonometric functions given a point on the terminal side of an angle
WIR6 20B M150 V04
Evaluating compositions with inverse trigonometric functions
WIR6 20B M150 V05
Evaluating compositions with inverse trigonometric functions
WIR6 20B M150 V08
Verifying a trigonometric identity
WIR6 20B M150 V09
Verifying a trigonometric identity
WIR6 20B M150 V19
Using a sum formula to rewrite a trigonometric expression
WIR6 20B M150 V21
Using a double angle formula to solve a trigonometric equation
WIR6 20B M150 V22
Using a double angle formula to solve a trigonometric equation
WIR6 20B M150 V23
Using double angle formulas to evaluate trigonometric functions
Angles on the Unit Circle
Discussing the degree and radian measure of special angles on the unit circle
Coordinates on the Unit Circle
Finding the coordinates on the unit circle for all the common angles
Deriving the Secondary Pythagorean Trig Identities
Using the Pythagorean Trig Identity to derive the secondary Pythagorean Identities
First Quadrant of the Unit Circle
Finding the coordinates on the unit circle for the common angles in the first quadrant
Quadrantal Angles
The coordinates for the quadrantal angles on the unit circle
Reciprocal Trig Functions
Finding the six trigonometric ratios for a right triangle
Special Right Triangles
Explaining the special right triangles and the relationships between their sides
Degree and Radian Angle Measure
Defining radians for angle measure using the corresponding arc length on a unit circle
How to Draw an Angle in Standard Position
Drawing an angle in standard position
How to Find Reference Angles
How to find reference angles for angles in standard position
Pythagorean Theorem
Explaining the Pythagorean Theorem and using it to find a missing side in a right triangle
What are Coterminal Angles?
Defining coterminal angles and how to determine if angles are coterminal
Derivatives and Applications: MATH 151 3.9 Problems 9-15
Tangent lines to parametric equations and related rates examples
Derivatives and Applications: MATH 151 K.2 Problems 9-15
Tangent lines to parametric equations and related rates examples
Derivatives and Applications: MATH 171 Problems 7 & 8
Calculating slopes of tangent lines to parametric curves
Differentiation and Applications: MATH 151 3.8 Problems 1-8
Derivatives of exponential and logarithmic functions and the exponential model
Differentiation and Applications: MATH 151 Problems 1-8
Derivatives of exponential and logarithmic functions and the exponential model
Exponentials and Hyperbolic Trigonometric Functions: MATH 171 Problems 3 & 4
Examples involving the tangent line to an exponential function and finding the derivative of hyperbolic cosine
Factoring a Quadratic-Like Equation with Sine
Solving an quadratic-like equation with sine by factoring
Find the Cosine Function for a Graph
Writing a cosine function for a given graph
Implicit Differentiation: MATH 151 3.5 Problems 10-13
Implicit differentiation and finding tangent lines
Limits: MATH 171 Problems 8 & 9
Proving a property of scalar multiplication for limits using the epsilon-delta definition and using the Squeeze Theorem for Limits.
MATH 152: Trigonometric Integrals Exercise 1
Using trigonometric identities to solve an integral with powers of sine and cosine
MATH 152: Trigonometric Integrals Exercise 2
Using trigonometric identities to integrate a power of cosine
MATH 152: Trigonometric Integrals Exercise 3
Using a trigonometric identity to integrate powers of sine and cosine
MATH 152: Trigonometric Integrals Exercise 4
Using a trigonometric identity to integrate powers of sine and cosine
MATH 152: Trigonometric Integrals Exercise 5
Using trigonometric identities to integrate even powers of sine and cosine
MATH 152: u-Substitution Exercise 6
Using u-substitution on an indefinite integral with an exponential function, sine, and cosine
Mean Value Theorem and Studying the Shape of Curves 2: MATH 151 4.3 Problems 1-6
Mean Value Theorem and properties of a graph
Mean Value Theorem and Studying the Shape of Curves: MATH 151 4.2 Problems 1-6
Mean Value Theorem and properties of a graph
MLC WIR 20B M151 week10 #10a
Finding the derivative of an implicit function
MLC WIR 20B M151 week10 #10b
Finding the derivative of an implicit function
MLC WIR 20B M151 week10 #15
Determining the rate that the area of a triangle is increasing based on the rate an angle is increasing
MLC WIR 20B M151 week10 #19a
Using L'Hospital's Rule to solve a limit
MLC WIR 20B M151 week10 #22
Using the Fundamental Theorem of Calculus to find the derivative of a function defined using an integral
MLC WIR 20B M151 week10 #24c
Evaluating a definite integral with an exponential and sine function
MLC WIR 20B M151 week10 #24d
Using u-substitution to evaluate an indefinite integral
MLC WIR 20B M151 week2 #03
Evaluating a composition of trigonometric and inverse trigonometric functions
MLC WIR 20B M151 week2 #04
Simplifying expressions containing trigonometric and inverse trigonometric functions
MLC WIR 20B M151 week4 #1kl
Using the Chain Rule to differentiate functions
MLC WIR 20B M151 week4 #1mn
Using the Chain Rule to differentiate functions with exponential and trigonometric functions
MLC WIR 20B M151 week4 #1o
Using the Chain Rule to differentiate a function containing trigonometric functions
MLC WIR 20B M151 week4 #5
Using the Chain Rule to find the pattern for a higher order derivative
MLC WIR 20B M151 week5 #1b
Finding the derivative using implicit differentiation
MLC WIR 20B M151 week5 #1c
Finding the derivative using implicit differentiation
MLC WIR 20B M151 week5 #1d
Finding the derivative using implicit differentiation
MLC WIR 20B M151 week5 #2
Finding the derivative using implicit differentiation
MLC WIR 20B M151 week5 #3b
Finding a tangent line to an curve defined implicitly
MLC WIR 20B M151 week5 #4ef
Finding the derivative of a function containing a logarithmic function
MLC WIR 20B M151 week5 #4ghi
Finding the derivatives of functions containing logarithms
MLC WIR 20B M151 week5 #5
Finding the derivative of a function containing a logarithms
MLC WIR 20B M151 week5 #7a
Using logarithmic differentiation to find the derivative of a function
MLC WIR 20B M151 week5 #7c
Using logarithmic differentiation to find the derivative of a function
MLC WIR 20B M151 week5 #8b
Graphing a vector function by converting it to a Cartesian equation
MLC WIR 20B M151 week5 #9b
Finding the tangent line to a parametric curve
MLC WIR 20B M151 week6 #10
Finding a higher order derivative of a function
MLC WIR 20B M151 week6 #1ab
Using the Product and Chain Rule to find several derivatives
MLC WIR 20B M151 week6 #1ef
Using the Quotient and Chain Rules to find several derivatives
MLC WIR 20B M151 week6 #1gh
Using the Product and Chain Rules to differentiate functions with logarithms
MLC WIR 20B M151 week6 #1ij
Differentiating functions with logarithmic and inverse trigonometric functions
MLC WIR 20B M151 week6 #3
Using the chain rule to find a derivative
MLC WIR 20B M151 week6 #4a
Using logarithmic differentiation to find the derivative of a function
MLC WIR 20B M151 week6 #4b
Using logarithmic differentiation to find the derivative of a function
MLC WIR 20B M151 week6 #9
Finding where a function has horizontal tangent lines
MLC WIR 20B M151 week7 #1c
Finding the absolute maximum and absolute minimum values of a function on a closed interval
MLC WIR 20B M151 week7 #4b
Evaluating a limit using L'Hospital's Rule
MLC WIR 20B M151 week8 #4d
Finding the antiderivative of a function
MLC WIR 20B M151 week8 #5a
Finding a function from its second derivative using antidifferentiation
MLC WIR 20B M151 week8 #5b
Antidifferentiating twice to find a function from its second derivative
MLC WIR 20B M151 week8 #5c
Antidifferentiating twice to find a function from its second derivative
MLC WIR 20B M151 week8 #5d
Antidifferentiating to find a function from its derivative
MLC WIR 20B M151 week8 #5e
Antidifferentiating twice to find a function from its second derivative
MLC WIR 20B M151 week9 #10d
Finding the antiderivative of a function and using a function value to find the constant
MLC WIR 20B M151 week9 #8e
Evaluating a limit with an indeterminant product using L'Hospital's Rule
Parametric Curves: MATH 151 J.3 Problems 1-5
Cartesian equations and parametric equations of curves
Properties of a Sine Function
Finding the amplitude, period, phase shift, and vertical shift for a given sine function
Review for the Common Exam: MATH 151 Exam 1 Review Problems 10-13
Review of vector functions and parametric equations
Review for the Common Exam: MATH 151 Exam 2 Review Problems 10-15
Implicit differentiation and physics applications of derivatives
Review for the Common Exam: MATH 151 Exam 2 Review Problems 16-20
Derivatives of parametric equations and tangent lines
Review for the Common Exam: MATH 151 Exam 2 Review Problems 1-9
Reviewing the chain rule and the derivatives and limits of trigonometric functions
Review for the Common Exam: MATH 151 Exam 3 Review Problems 8-15
Review of limits and derivatives of inverse trigonometric functions
Review for the Common Exam: MATH 151 Exam 3 Review Problems 8-15
Review of limits and derivatives of inverse trigonometric functions
Review for the Common Exam: MATH 152 Exam 1 b Review Problems 29-33
Review of trigonometric substitution
Review for the Common Exam: MATH 152 Exam 3 b Review Problems 1-3
Review of sequences and finding the sum of a series
Review for the Common Exam: MATH 152 Exam 3 c Review Problems 13-18
Review of Taylor and Maclaurin Series and their properties
Riemann Sums and Definite Integrals: MATH 151 5.2 Problems 6-12
Using Reimann sums and the Fundamental Theorem of Calculus
Riemann Sums and Definite Integrals: MATH 151 5.3 Problems 6-12
Using Riemann sums and the Fundamental Theorem of Calculus
Sketching One Period of a Sine Function
Sketching one period of a transformed sine graph
Solving an Equation with Cosine
Solving an equation with cosine on a given interval
Solving an Equation with Sine
Solving a trigonometric equation with sine on a given interval
Solving Problems with Trig Exercise 1
Using trig to find the length of the side of a right triangle given an angle and side length
Solving Trig Equations Using Identities Exercise 1
Using the Even/Odd and Cofunction Identities to solve an equation with sine
Solving Trig Equations Using Identities Exercise 3
Solving a trig equation with cotangent and cosecant using trig identities
Solving Trig Equations Using Identities Exercise 7
Solving a trig equation with cotangent and sine using trig identities
Solving Trigonometric Equations Exercise 3
Solving a trigonometric equation with secant by factoring
Taylor and Maclaurin Series: MATH 152 11.10 Problems 4-10
Finding Taylor and Maclaurin Series for functions
Taylor and Maclaurin Series: MATH 172 Problems 1-5
Reviewing Taylor and Maclaurin Series and Taylor's Inequality
Trig Identities Exercise 1
Using the reciprocal and ratio trig identities to simplify an expression
Trig Identities Exercise 2
Using the Pythagorean Identities to simplify a trig expression
Trigonometric Proofs Exercise 1
Using the Reciprocal, Ratio, and Pythagorean Identities to verify a trig identity
Trigonometric Proofs Exercise 2
Proving a trigonometric identity involving secant, cotangent, and tangent
Trigonometric Proofs Exercise 3
Proving a trig identity involving sine and cosine
Trigonometric Proofs Exercise 4
Proving a trig identity involving sine, cosine, and cotangent
Trigonometric Substitution: MATH 172 Problems 6 & 7
Integrating using a trigonometric substitution
Trigonometry Derivatives and the Chain Rule 2: MATH 151 3.4 Problems 1-9
Derivatives of trigonometric functions and using the Chain Rule
Trigonometry Derivatives and the Chain Rule: MATH 151 3.3 Problems 1-9
Derivatives of trigonometric functions and using the Chain Rule
WIR 20B M152 V29
Evaluating an integral using trigonometric identities
WIR 20B M152 V31
Evaluating an integral using trigonometric identities
WIR 20B M152 V51
Determining if a series converges or diverges
WIR 20B M152 V87
Converting parametric equations into a Cartesian equation and graphing
WIR 20B M152 V89
Find the integral representing the surface area of a rotated parametric curve
WIR10 20B M251 V1
Evaluating a surface integral over a cylinder
WIR2 20B M251 V10
Finding the length of a three-dimensional curve
WIR2 20B M251 V12
Finding the position vector function given the velocity and an initial position
WIR2 20B M251 V9
Finding the angle of intersection for two three-dimensional vector functions
WIR3 20B M251 V11
Finding all second-order partial derivatives of a function of two variables
WIR4 20B M251 V5
Finding the maximum rate of change and the direction it occurs for a function of two variables
WIR5 20B M150 V11
Finding trigonometric functions given information about the angle
WIR5 20B M150 V13
Determining the properties of a sine function and graphing it
WIR5 20B M150 V14
Writing the equation for a sine function with certain characteristics
WIR5 20B M150 V15
Determining the properties of a cosine function and graphing it
WIR5 20B M150 V16
Writing the equation for a cossine function with certain characteristics
WIR5 20B M150 V17
Writing the equation for a sine function to match a given graph
WIR5 20B M150 V18
Writing the equation for a cosine function to match a given graph
WIR5 20B M251 V4
Evaluating a double integral over a rectangle
WIR6 20B M150 V11
Solving a trigonometric equation
WIR6 20B M150 V12
Solving a trigonometric equation by factoring
WIR6 20B M150 V13
Solving a trigonometric equation
WIR6 20B M150 V14
Solving a trigonometric equation
WIR6 20B M150 V15
Solving a trigonometric equation
WIR6 20B M150 V16
Using a difference formula to evaluate a trigonometric function
WIR6 20B M150 V17
Using a sum formula to evaluate a trigonometric expression
WIR6 20B M251 V2
Evaluating a double integral by changing to polar coordinates