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# Fundamental Trigonometric Identities

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

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Introduction to Trig Identities

This lesson introduces trigonometric identities and gets you familiar with using them.

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## Verifying with Trigonometric Identities

by EPISD Precalculus Team //at grade

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• Practice
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## Introduction to Trig Identities Stop and Jot

Strengthen ability to analyze word meaning from context and introduce students to unfamiliar vocabulary.

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• Study Guide

## Basic Trigonometric Identities

Study guide for the basic trigonometric identities.

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