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Lesson Plan

Illustrative Mathematics: F Tf Sum and Difference Angle Formulas

Curated by ACT

The goal of this task is to have students derive the addition and subtraction formulas for cosine and tangent, and the subtraction formula for cosine, from the sum formula for sine. Aligns with F-TF.C.9.

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CCSS: Adaptable
Concepts
cosine, sine, tangent, formulas
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Additional Tags
cc by-nc-sa 4.0, creative commons attribution-noncommercial-sharealike 4.0, f-tf.c.9, illustrative mathematics, illustrative mathematics: f-tf sum and difference angle formulas, oh.math.hsf.tf.9, sum and difference angle formulas, addition and subtraction formulas in trigonometry
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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice
Common Core
HSF-TF.C.9