Precalculus : Sum and Difference Identities For Tangent

Study concepts, example questions & explanations for Precalculus

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Example Questions

Example Question #1 : Sum And Difference Identities

According to the trigonometric identities, 

Possible Answers:

Correct answer:


The trigonometric identity , is an important identity to memorize.

Some other identities that are important to know are:

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