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.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 46E
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Use the cosine of a sum and cosine of a difference identities to find cos(s+t) AND cos(s−t)
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