# Trigonometric Functions

Parent topic:
Functions, Trigonometry
• ### Functions Resources

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Tim Brzezinski

• ### Sine & Cosine of a Sum: Discovery

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Tim Brzezinski

• ### Unit Circle and Sine Graph

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Anthony OR 柯志明

• ### Sine Identity

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Tim Brzezinski

• ### Derivative of Sine & Cosine Functions (Quick Investigation)

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Tim Brzezinski

• ### Graphing Sine & Cosine Functions (II)

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Tim Brzezinski

• ### Identifying Trig Ratios: Quick Formative Assessment

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Tim Brzezinski

• ### Tangent Identity

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Tim Brzezinski

• ### Similarity & Right Triangle Trigonometry

Book

Tim Brzezinski

• ### Cosine Identity

Activity

Tim Brzezinski

• ### Unit Circle and Cosine Graph

Activity

Anthony OR 柯志明

• ### True Meaning of Sine, Cosine, Tangent Ratios within Right Triangles

Activity

Tim Brzezinski

• ### Law of Sines (& Area)

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Tim Brzezinski

• ### Law of Cosines: Discovery

Activity

Tim Brzezinski

• ### Trigonometric Ratios (Right Triangle Context)

Activity

Tim Brzezinski

• ### Graphing Sine & Cosine Functions (I)

Activity

Tim Brzezinski

• ### Unit Circle and Tangent Graph

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Anthony OR 柯志明

• ### Right Triangles: Identifying Sides WRT Acute Angles

Activity

Tim Brzezinski

Activity

ayoob

• ### Derivatives (Intro)-1

Activity

Tim Brzezinski

• ### What "CO" in COsine Means

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Tim Brzezinski

• ### Sine & Cosine Period Action (1)!

Activity

Tim Brzezinski

• ### Derivatives (Intro)-2

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Tim Brzezinski

• ### Intuitive Derivative Graphing Exercise

Activity

Tim Brzezinski