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OpenStudy (anonymous):
where defined, csc(2*theta) sin(2*theta) = ?
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OpenStudy (mertsj):
1 The product of reciprocals is 1
OpenStudy (anonymous):
csc(2*theta) = 1/sin(2*theta) therefore, 1/sin(2*theta) * sin(2*theta) = 1 [since sin(2*theta) cancels out]
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