5. cos A =- and sin B =, both A and B in QIl. 6. cos A = - and cos B = - 2, with A and B in QIII. 17

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 105E
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INSTRUCTIONS: Find tan (A+B) and tan (A-B) if:

5. cos A = - and sin B =, both A and B in QII.
3
6. cos A =.
17
and cos B = -, with A and B in QIII.
Transcribed Image Text:5. cos A = - and sin B =, both A and B in QII. 3 6. cos A =. 17 and cos B = -, with A and B in QIII.
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