Aljabar Contoh

$f (x) = \frac{\cos (2 x) - \cos (x)}{x^{2}}$

Langkah 1

Grafik.

$f (x) = \frac{\cos (2 x) - \cos (x)}{x^{2}}$

Langkah 2

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$