In this exercise you will take on the role of a trigonometry teacher. A student has chosen to manipulate only the RIGHT side of the identit below until it matches the LEFT, but the proof is flawed. 2 cos (4) – 1 = cos (o) – sin (4) Select any step(s) of the proof which contain errors: START: cos (4) – sin (¢) OStep 1: [cos (4) – sin' (4)] [cos (4) + sin (4)] O Step 2: cos (4) + sin²($) O Step 3: cos () – [1 – cos ($)] cos (4) – 1- cos²($) COS O Step 5: 2 cos?() – 1

In this exercise you will take on the role of a trigonometry teacher. A student has chosen to manipulate only the RIGHT side of the identit below until it matches the LEFT, but the proof is flawed. 2 cos (4) – 1 = cos (o) – sin (4) Select any step(s) of the proof which contain errors: START: cos (4) – sin (¢) OStep 1: [cos (4) – sin' (4)] [cos (4) + sin (4)] O Step 2: cos (4) + sin²($) O Step 3: cos () – [1 – cos ($)] cos (4) – 1- cos²($) COS O Step 5: 2 cos?() – 1

Trigonometry (11th Edition)

11th Edition

ISBN:9780134217437

Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Chapter1: Trigonometric Functions

Section: Chapter Questions

Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.

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