Find the value of the missing angle (in degrees). Provide a single number as your answer. cos(__°) = cos(26°)cos(81°) − sin(26°)sin(81°) Hint. Use the Sum and/or Difference Identities.

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°.
Question

Find the value of the missing angle (in degrees).  Provide a single number as your answer.

cos(__°) = cos(26°)cos(81°) − sin(26°)sin(81°)

Hint.  Use the Sum and/or Difference Identities.

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