Use the cosine of a sum and cosine of a difference identities to find cos (s + t) and cos (s – t). 3 coss = and sin t= , s and t in quadrant IV ... cos (s + t) =| (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
Use the cosine of a sum and cosine of a difference identities to find cos (s + t) and cos (s – t). 3 coss = and sin t= , s and t in quadrant IV ... cos (s + t) =| (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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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Question
Use the cosine of a sum and cosine of a difference identities to find cos(s+t) AND cos(s−t)
![Use the cosine of a sum and cosine of a difference identities to find cos (s+ t) and cos (s - t).
3
coss == and sint= -
, s and t in quadrant IV
cos (s + t) =
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8679ba89-362d-447b-b8f6-ff4298c45087%2Fb06949f2-a03f-484d-9ebf-05698b781421%2Fi0cftio_processed.png&w=3840&q=75)
Transcribed Image Text:Use the cosine of a sum and cosine of a difference identities to find cos (s+ t) and cos (s - t).
3
coss == and sint= -
, s and t in quadrant IV
cos (s + t) =
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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