anoddYoungWillenez anoddYoungWillenez

24-11-2016
Mathematics

contestada

Why is sine and cosine defined at 90 degrees? It makes a 90-90-0 triangle which makes no sense tome.

Respuesta :

andriansp andriansp

25-11-2016

when theta = 90 degrees, the hypotenuse = opposite side, so sin (90) = 1

in the unit circle interpretation, sin theta is defined as y-coordinate point the unit circle that correspond to the measure of the arc along the unit circle

Hope this helps

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