Grafik Fungsi Trigonometri

MENENTUKAN FUNGSI TRIGONOMETRI DARI GRAFIK

$$\boxed{{\displaystyle \boxed{{\displaystyle y=a\sin b(x-x_1)+c}}}}$$

$$a={\displaystyle \frac{y_2-y_1}{2}}$$

$$b={\displaystyle \frac{2\pi }{x_2-x_1}}$$

$$c={\displaystyle \frac{y_2+y_1}{2}}$$

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$$\boxed{{\displaystyle \boxed{{\displaystyle y=a\cos b(x-x_1)+c}}}}$$

$$a={\displaystyle \frac{y_2-y_1}{2}}$$

$$b={\displaystyle \frac{2\pi }{x_2-x_1}}$$

$$c={\displaystyle \frac{y_2+y_1}{2}}$$