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cos(s)cos(t) + sin(t)sin(s) = %3D

cos(s)cos(t) + sin(t)sin(s) = %3D

Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter5: Identities And Formulas
Section5.5: Additional Identities
Problem 56PS
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There are many trig identities. They allow you to solve (trig) equations by hand, and are helpful with calculus. Below is (the left side of) one trig identity. Using the reading in textbook sections 7.1 2, 7.2 2, and 7.3 2 (or other links below), identify this formula and type the other side of the identity in the empty box. cos(s)cos(t) + sin(t)sin(s) =
Transcribed Image Text:There are many trig identities. They allow you to solve (trig) equations by hand, and are helpful with calculus. Below is (the left side of) one trig identity. Using the reading in textbook sections 7.1 2, 7.2 2, and 7.3 2 (or other links below), identify this formula and type the other side of the identity in the empty box. cos(s)cos(t) + sin(t)sin(s) =
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