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Trigonometric Identities - Simplify Expressions

In this lesson, we will use the trigonometric identities to simplify trigonometric expressions.

 

 

Let us look at how to use trigonometric identities to simplify trigonometric expressions. The following are some common trigonometric identities. More trigonometric identities can be found here.


Reciprocal Identities

Quotient Identities

Pythagorean Identities

 

 

Example:

Simplify


Solution:

 

 

Example:

Simplify

Solution:

 

 

Videos

Algebraic Manipulation of Trigonometric Functions -
Part 1 Distributive Property, FOIL, Factoring

 

Algebraic Manipulation of Trigonometric Functions -
Part 2 Simplifying Complex Fractions, Multiplying, Dividing, Adding and Subtracting Fractions

 

Algebraic Manipulation of Trigonometric Functions -
Part 3 Radical Expressions

 

Algebraic Manipulation of Trigonometric Functions -
Part 4 More Examples

 

 

 

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