Calculate the exact value of: cos(pi/12)
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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Hey there, I have these following trignometric equations that I need help with. I was hoping if I could get them solved. If possible, please provide exact steps.
Calculate the exact value of: cos(pi/12)
Calculate the exact value of: sin(3pi/4)
Verify the identity: sinx^2 (cotx + 1)^2 = cos^2x(tanx + 1)^2
cos 2x = root3/2, (Interval: 0 < x < pi)
solve for x: 2cosx + root3 = 0, (Interval: 0 < x < 2pi)
solve for x: 5cos2x - cosx + 1 = 0, (Interval: 0 < x< 2pi)
Solve equation in given interval: 2cosx^2 x + cosx = 1 (Interval: (0 < x < 2pi)
Verify the identity: csc(2x) = csc(x)/2cos(x)
Solve the equation: 2cos(x) + root3 = 0
simplify expression: tan(5pi /12)
each time "^2" is used, it means the squared,
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