13. ап V21+3п 15. ат — 2" cos пл

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 21E
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13. аn
V21+3n
15. an = 2-" cos nA
Transcribed Image Text:13. аn V21+3n 15. an = 2-" cos nA
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