Let cosA = −5/13 with A in QIII and sinB = 3/5 with B in QI. Find  tan(A − B).

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter1: The Six Trigonometric Functions
Section1.3: Definition I: Trigonometric Functions
Problem 41PS: As increases from 0 to 90, the value of tan tends toward ___________.
Question

 Let cosA = −5/13 with A in QIII and sinB = 3/5 with B in QI. Find 
tan(A − B). 

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