Mathematics, 28.06.2019 13:10 manbabymanhook

Ngles α and β are angles in standard position such that:
α terminates in quadrant iii and sinα = -5/13
β terminates in quadrant ii and tanβ = -8/15
find cos(α - β).
-220/221
-140/221
140/221
220/221

Answers: 2

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Ngles α and β are angles in standard position such that:
α terminates in quadrant iii and sin...