三角学示例

$\frac{(1 - \cos (x)) (1 + \cos (x))}{(1 - \sin (x)) (1 + \sin (x))}$

解题步骤 1

$\frac{(1 - \cos (x)) (1 + \cos (x))}{(1 - \sin (x)) (1 + \sin (x))}$

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