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Prove the identity. cosx sin (x+y) – sinx cos (x+y)= siny

Prove the identity. cosx sin (x+y) – sinx cos (x+y)= siny

Trigonometry (11th Edition)
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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Prove the identity. cos (n+x): cosx Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailed description of a Rule, select the More Information Button to the right of the Rule. Statement Rule cos (a + x) OsinO tan O Select Rule cot OsecO CSC JT (0) Validate
Transcribed Image Text:Prove the identity. cos (n+x): cosx Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailed description of a Rule, select the More Information Button to the right of the Rule. Statement Rule cos (a + x) OsinO tan O Select Rule cot OsecO CSC JT (0) Validate
Prove the identity. cosx sin (x+y) – sinx cos (x+y)= siny Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailed description of a Rule, select the More Information Button to the right of the Rule. Statement Rule cosx sin (x + y) - sinx cos (x + y) sin tan Select Rule |cotO OsecO CSC Validate (0) ?
Transcribed Image Text:Prove the identity. cosx sin (x+y) – sinx cos (x+y)= siny Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailed description of a Rule, select the More Information Button to the right of the Rule. Statement Rule cosx sin (x + y) - sinx cos (x + y) sin tan Select Rule |cotO OsecO CSC Validate (0) ?
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