86 Videos for "the unit circle"

Evaluating Sine and Cosine at Other Special Angles  Concept
Math › Precalculus › Trigonometric Functions
How to measure the sine and cosine of 150. 
Trigonometric Equations that Require Factoring  Concept
Math › Trigonometry › Advanced Trigonometry
How to solve a sine equation by factoring: 4 [sin(theta)]^2 = 2. 
The Cosine Addition Formulas  Problem 3
Math › Trigonometry › Advanced Trigonometry
How to evaluate cos(a ? b) and cos(a + b) when you know only sin(a) and cos(b). 
Graphing the Reciprocal Trigonometric Functions  Problem 1
Math › Precalculus › Trigonometric Functions
How to graph y = sec q. 
Evaluating Sine and Cosine at Special Acute Angles  Problem 1
Math › Precalculus › Trigonometric Functions
How do we measure sine and cosine of ?/6? 
Evaluating Sine and Cosine at Special Acute Angles  Problem 1
Math › Trigonometry › Trigonometric Functions
How do we measure sine and cosine of ?/6? 
Trigonometric Equations that Require Factoring  Concept
Math › Precalculus › Advanced Trigonometry
How to solve a sine equation by factoring: 4 [sin(theta)]^2 = 2. 
The Cosine Addition Formulas  Problem 3
Math › Precalculus › Advanced Trigonometry
How to evaluate cos(a ? b) and cos(a + b) when you know only sin(a) and cos(b). 
Evaluating Sine and Cosine at Special Acute Angles  Problem 2
Math › Trigonometry › Trigonometric Functions
How to measure sine and cosine of pi/3 
Evaluating Sine and Cosine at Special Acute Angles  Problem 2
Math › Precalculus › Trigonometric Functions
How to measure sine and cosine of pi/3 
Evaluating Sine and Cosine at Other Special Angles  Problem 1
Math › Precalculus › Trigonometric Functions
How to measure the sine and cosine of 135?. 
Evaluating Sine and Cosine at Special Acute Angles  Problem 3
Math › Precalculus › Trigonometric Functions
How do we graph sine and cosine when q is between 0 and ?/2? 
Evaluating Sine and Cosine at Other Special Angles  Problem 2
Math › Precalculus › Trigonometric Functions
How to measure the sine and cosine of 11*pi/6. 
Evaluating Sine and Cosine at Other Special Angles  Problem 1
Math › Trigonometry › Trigonometric Functions
How to measure the sine and cosine of 135?. 
Evaluating Sine and Cosine at Other Special Angles  Problem 3
Math › Precalculus › Trigonometric Functions
How to measure the sine and cosine of 5?/3. 
Trigonometric Equations that Require Factoring  Problem 3
Math › Trigonometry › Advanced Trigonometry
How to solve a sine and cosine equation by factoring: ?2 sin2 x ? 5 cos x + 4 = 0. 
Trigonometric Equations that Require Factoring  Problem 3
Math › Precalculus › Advanced Trigonometry
How to solve a sine and cosine equation by factoring: ?2 sin2 x ? 5 cos x + 4 = 0. 
Trigonometric Equations that Require Factoring  Problem 2
Math › Precalculus › Advanced Trigonometry
How to solve a tangent equation by factoring: tan^2(x)  tan(x)  2 = 0. 
Trigonometric Equations that Require Factoring  Problem 1
Math › Trigonometry › Advanced Trigonometry
How to solve a sine equation by factoring: 2 sin2 x ? 3 sin x + 1 = 0. 
Evaluating Sine and Cosine at Other Special Angles  Problem 3
Math › Trigonometry › Trigonometric Functions
How to measure the sine and cosine of 5?/3.