Trigonometry : Factoring Trigonometric Equations

Study concepts, example questions & explanations for Trigonometry

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Example Questions

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Example Question #11 : Factoring Trigonometric Equations

What is a simple expression for the formula:

Possible Answers:

Correct answer:

Explanation:

From the expression :

we have:

 

Now since we know that :

. This expression becomes:

.

This is what we need to show.

Example Question #12 : Factoring Trigonometric Equations

Factor: 

Possible Answers:

Correct answer:

Explanation:

Step 1: Recall the difference of squares (or powers of four) formula:



Step 2: Factor the question:



Factor more:



Step 3: Recall a trigonometric identity:

.. Replace this

Final Answer: 

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