三角学示例

$2 \sin^{2} (x) - 7 \sin (x) \cos (x) + 5 \cos^{2} (x) = 0$

解题步骤 1

对方程两边进行作图。

$y = 2 \sin^{2} (x) - 7 \sin (x) \cos (x) + 5 \cos^{2} (x)$

$y = 0$

解题步骤 2

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