Use the cosine of a sum and cosine of a difference identities to find cos (s + t) and cos (s- t). 4 and sint= 5 2 s and t in quadrant IV coss= 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). 4 and sint= 5 2 s and t in quadrant IV coss= 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 81E
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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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MATH 240 (TTh) AM - FALL 2021 - KHASANOVA
E Homework: Section 5.3 Homework
Use the cosine of a sum and cosine of a difference identities to find cos (s + t) and cos (s - t).
and sint= -
5'
s and t in quadrant IV
cos s=
cos (s+ t) =||
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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