7. Solve for all solutions on [0,27): 4 cos (2a)+1=4cos² (a) :
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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I need help with #7
Transcribed Image Text:63
a. sin(2x)=
32
b. cos(2x) = 31
63
c. tan(2x)=
32
31
7. Solve for all solutions on [0,2л): 4 cos (2a)+1=4 cos² (a): a
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