2. Prove the identity: sin (x-y) = tanx- tany cosx cosy [When you are finished, delete this text and the guidelines in the table below.] Statement Rule Defend your process by create more rows if necessary. Indicate each step of your | identifying the appropriate explanation for each process step in this column. Use this template to indicate your answer. You can process in this column Remember to: • Identify the problem statement. Correctly use appropriate identities and/or theorems. Correctly use the algebraic process. Identify the final statement.

2. Prove the identity: sin (x-y) = tanx- tany cosx cosy [When you are finished, delete this text and the guidelines in the table below.] Statement Rule Defend your process by create more rows if necessary. Indicate each step of your | identifying the appropriate explanation for each process step in this column. Use this template to indicate your answer. You can process in this column Remember to: • Identify the problem statement. Correctly use appropriate identities and/or theorems. Correctly use the algebraic process. Identify the final statement.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.3: The Addition And Subtraction Formulas

Problem 79E

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