$$$i int_{} - \sqrt{1 - x^{2}} - \frac{\sin{\left(x \right)} \tan^{2}{\left(x \right)}}{\cos{\left(3 x \right)} + 3}$$$ 关于$$$x$$$的积分

该计算器将求出$$$i int_{} - \sqrt{1 - x^{2}} - \frac{\sin{\left(x \right)} \tan^{2}{\left(x \right)}}{\cos{\left(3 x \right)} + 3}$$$关于$$$x$$$的积分/原函数，并显示步骤。

求$$$\int \left(i int_{} - \sqrt{1 - x^{2}} - \frac{\sin{\left(x \right)} \tan^{2}{\left(x \right)}}{\cos{\left(3 x \right)} + 3}\right)\, dx$$$。

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