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OpenStudy (ria23):
Verify the identity. cot(θ - pi/2) = -tan θ
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OpenStudy (aum):
\(\cot(\theta - \pi/2) = -\cot(\pi/2 - \theta)\). |dw:1409034282249:dw| From the diagram: \(-\cot(\pi/2 - \theta) = -\tan(\theta) \)
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