Kemi tontu safaani trigonometri

Leneen ci safaani fonksioŋ yi. Safaanu sinus ak safaanu tangent dañuy tontu saa su nekk diggante $\displaystyle -90^{\circ}$ ak $\displaystyle 90^{\circ}$, safaanu kosinus diggante $\displaystyle 0^{\circ}$ ak $\displaystyle 180^{\circ}$. Ci radiaŋ, mooy $\displaystyle -\frac{\pi}{2}$ ba $\displaystyle \frac{\pi}{2}$, ak $\displaystyle 0$ ba $\displaystyle \pi$. Ci grad, $\displaystyle -100$ ba $\displaystyle 100$, ak $\displaystyle 0$ ba $\displaystyle 200$.

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