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Prove the identity.
sin(x+y) / cosxcosy = tanx+tany
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The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two
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Prove the identity.
sin(x+y) / cosxcosy = tanx+tany
...
sin(x+y) / cosxcosy = tanx+tany
...
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