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assume that all given angles are in simplest form, so that if A is in QIV you may asssume that 270o < A <360o if sin B= -1/2 with B on QIII   find cot B/2

assume that all given angles are in simplest form, so that if A is in QIV you may asssume that 270o < A <360o if sin B= -1/2 with B on QIII   find cot B/2

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 14E
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assume that all given angles are in simplest form, so that if A is in QIV you may asssume that 270o < A <360o
if sin B= -1/2 with B on QIII
 
find cot B/2
 
 
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