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Mathematics, 31.07.2020 09:01 tannercarr7428
Angles 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
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Angles α and β are angles in standard position such that: α terminates in Quadrant III and sinα = -...
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