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Dania Schwartz
Mathematics
17 November, 02:02
What is sin theta when cos theta is 0
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Aniya
17 November, 02:24
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Divide by costheta
You get Sin (theta) / Cos (theta) + Cos (theta) / cos (theta) = 0
[Sinx/cosx = tanx (a law of trigs) ]
so the same as tan (theta) + 1=0
So tan (theta) = -1
Inverse tan/arctan (-1) = 3/4 pi and (2pi - 3/4pi) = 7/4pi
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