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Trigonometry

Unit circle introduction

Radians

The Pythagorean identity

Trigonometric values of special angles

Graphs of sin(x), cos(x), and tan(x)

Amplitude, midline and period

Transforming sinusoidal graphs

Graphing sinusoidal functions

Sinusoidal models

Trigonometric values of special angles

Explore trigonometric values of special angles, mastering calculations of sine, cosine, and tangent, while developing skills to apply these concepts in deeper trigonometric contexts.

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Trig values of π/4

Khan Academy

9th - 12th Grade

10 Qs