
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Question
Find all solutions to the equation 11 cos x=1/cos x for 0≤x≤2π.
Enter your answers in increasing order, rounded to three decimal places.
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