49 Videos for "trigonometric identities"

Trigonometric Identities  Concept
Math › Trigonometry › Trigonometric Functions
How to use the unit circle to derive the tangent identity and the Pythagorean identity. 
Trigonometric Identities  Concept
Math › Precalculus › Trigonometric Functions
How to use the unit circle to derive the tangent identity and the Pythagorean identity. 
Trigonometric Identities  Problem 1
Math › Trigonometry › Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known. 
Trigonometric Identities  Problem 1
Math › Precalculus › Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known. 
Using Trigonometric Identities  Problem 1
Math › Trigonometry › Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra. 
Using Trigonometric Identities  Problem 1
Math › Precalculus › Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra. 
Using Trigonometric Identities  Problem 3
Math › Trigonometry › Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra. 
Using Trigonometric Identities  Problem 3
Math › Precalculus › Trigonometric Functions
How to prove an identity using a Pythagorean identity and algebra. 
Using Trigonometric Identities  Problem 2
Math › Trigonometry › Trigonometric Functions
How to simplify a trigonometric expression using a Pythagorean identity and algebra. 
Using Trigonometric Identities  Problem 2
Math › Precalculus › Trigonometric Functions
How to simplify a trigonometric expression using a Pythagorean identity and algebra. 
Using Trigonometric Identities  Concept
Math › Trigonometry › Trigonometric Functions
How to simplify a trigonometric expression by converting to sines and cosines and using algebra. 
Using Trigonometric Identities  Concept
Math › Precalculus › Trigonometric Functions
How to simplify a trigonometric expression by converting to sines and cosines and using algebra. 
Trigonometric Identities  Problem 2
Math › Trigonometry › Trigonometric Functions
How to use the unit circle to show that cosine is an even function, and sine and tangent are odd functions. 
Trigonometric Identities  Problem 2
Math › Precalculus › Trigonometric Functions
How to use the unit circle to show that cosine is an even function, and sine and tangent are odd functions. 
Trigonometric Identities  Problem 3
Math › Trigonometry › Trigonometric Functions
How to use the unit circle to show that sine and cosine have period 2?, and tangent has period ?. 
Trigonometric Identities  Problem 3
Math › Precalculus › Trigonometric Functions
How to use the unit circle to show that sine and cosine have period 2?, and tangent has period ?. 
The Reciprocal Trigonometric Functions  Concept
Math › Precalculus › Trigonometric Functions
How to define the reciprocal trigonometric functions, the reciprocal identities, and the Pythagorean identities. 
The Reciprocal Trigonometric Functions  Concept
Math › Trigonometry › Trigonometric Functions
How to define the reciprocal trigonometric functions, the reciprocal identities, and the Pythagorean identities. 
Graphing the Reciprocal Trigonometric Functions  Concept
Math › Trigonometry › Trigonometric Functions
How to use the unit circle to derive identities that are useful in graphing the reciprocal trigonometric functions. 
Graphing the Reciprocal Trigonometric Functions  Concept
Math › Precalculus › Trigonometric Functions
How to use the unit circle to derive identities that are useful in graphing the reciprocal trigonometric functions.