Mathematics, 04.07.2019 08:20 humpty21
Sin α = 21/29, α lies in quadrant ii, and cos β = 15/17, β lies in quadrant i find sin (α - β).
Answers: 1
lies in quadrant II, we have 
, so
lies in quadrant I, so 
and
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Sin α = 21/29, α lies in quadrant ii, and cos β = 15/17, β lies in quadrant i find sin (α - β)....
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