how to solve these? a) cost = −5/13 , and π/2 < t < π b) sint = −7/25 , and cost > 0 c) tant = −12/5, and sint < 0

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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how to solve these?

a) cost = −5/13 , and π/2 < t < π

b) sint = −7/25 , and cost > 0

c) tant = −12/5, and sint < 0 

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