1. 7.3 #1 a. sin 46°37' = Cos (90°-4637) = Cos 4323 b cos 73 12' = Sin C90-7372')= Sin 18 42 %3D 2. 7.3, #5 Find the exact values. a cos를+ cos등= A cos (Hint, use-+= %3D 7.4 #1 Find the exact values of sin 20, cos 20, and tan 20, for the given value of cos e = c. sin 20 = d. cos 20 = e. tan 20 = 7.4, #11 Verify the identity of sin 100 = 2 sin 50 cos 50.
1. 7.3 #1 a. sin 46°37' = Cos (90°-4637) = Cos 4323 b cos 73 12' = Sin C90-7372')= Sin 18 42 %3D 2. 7.3, #5 Find the exact values. a cos를+ cos등= A cos (Hint, use-+= %3D 7.4 #1 Find the exact values of sin 20, cos 20, and tan 20, for the given value of cos e = c. sin 20 = d. cos 20 = e. tan 20 = 7.4, #11 Verify the identity of sin 100 = 2 sin 50 cos 50.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 10E
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