Use addition formulas and the values of sin and cos for = /3 ,

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Use addition formulas and the values of sin θ and cos θ for θ = π/3 , π/4 to compute sin 7π/2 and cos 7π/12 exactly.

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Related Book For  answer-question

Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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