SOLUTION: If sin α = 4/5 and cos β = -5/13 for α in Quadrant I and β in Quadrant II, find sin(α - β).

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Question 1180319: If sin α = 4/5 and cos β = -5/13 for α in Quadrant I and β in Quadrant II, find sin(α - β).
Answer by ikleyn(52864) About Me  (Show Source):
You can put this solution on YOUR website!
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See the lesson
    - Advanced problems on calculating trigonometric functions of angles, Problem 1
in this site.

Find your problem there solved and explained in all details.