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OpenStudy (anonymous):
Can someone please help me on my Precalculus homework? :(
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OpenStudy (dumbcow):
have you posted it ?
OpenStudy (anonymous):
Here: I have to simplify that Trigonometric Identity but, I don't know how to simplify it :(
OpenStudy (anonymous):
@dumbcow
OpenStudy (dumbcow):
cot = 1/tan \[\frac{\frac{1}{\tan z}}{\tan z} = \frac{1}{\tan^{2} z} = \cot^2 z\]
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