Use the sum and difference identities to determine the exact value of the following expression. If the answer is undefined, write DNE. Answer sin115 cos65° + cos115˚ sin65° Keypad Keyboard Shortcuts

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 66RE
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Use the sum and difference identities to determine the exact value of the following expression. If the
answer is undefined, write DNE.
Answer
sin115 cos65° + cos115°sin65°
Keypad
Keyboard Shortcuts
Transcribed Image Text:Use the sum and difference identities to determine the exact value of the following expression. If the answer is undefined, write DNE. Answer sin115 cos65° + cos115°sin65° Keypad Keyboard Shortcuts
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