# Fundamental Trigonometric Identities

## Prove equations are true using Reciprocal, Tangent, and other identities.

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## Introduction to Trig Identities

This lesson introduces trigonometric identities and gets you familiar with using them.
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## Basic Trigonometric Identities

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## Basic Trigonometric Identities

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## Simplify and Verify using Trigonometric Identities

by EPISD Precalculus Team //at grade
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• PLIX

## Tangent Identity

Fundamental Trigonometric Identities Interactive
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• Study Guide