find the exact values of sine, cosine, and tangent of a/2 given the following information. 37) sin a = 5/13  90 degrees < a < 180 degrees 39) cos a = -8/17 180 degrees < a < 270 degrees

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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find the exact values of sine, cosine, and tangent of a/2 given the following information.

37) sin a = 5/13  90 degrees < a < 180 degrees

39) cos a = -8/17 180 degrees < a < 270 degrees

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