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Plans

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

The Pythagorean identity

Explore the Pythagorean identity and strengthen trigonometric skills by understanding how sine and cosine values relate on the unit circle through active problem-solving.

200+ videos and assessments

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VIDEOS

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Proof of the Pythagorean trig identity

Khan Academy

9th - 12th Grade

10 Qs

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Using the Pythagorean trig identity

Khan Academy

9th - 12th Grade

10 Qs