三角学示例

$\cos (2 x) - 3 \cos (x) - 3 - \cos^{2} (x) = \sin^{2} (x)$

解题步骤 1

对方程两边进行作图。

$y = \cos (2 x) - 3 \cos (x) - 3 - \cos^{2} (x)$

$y = \sin^{2} (x)$

解题步骤 2

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