Question 436335
In trigonometry, how do i know if i use 
sine, 
cosine, 
or tangent 
with a triangle?
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Since sine = y/r you need information about 2 of those
components to find the 3rd.
---
Since cosine = x/r you need info about 2 of those
components to find the 3rd.
---
Since tangent = y/x you need info about 2 of those
components to find the 3rd.
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Cheers,
Stan H.
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