$$$\frac{\ln\left(\tan{\left(x \right)}\right) \cos{\left(x \right)}}{\sin{\left(x \right)}}$$$ 的積分
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求$$$\int \frac{\ln\left(\tan{\left(x \right)}\right) \cos{\left(x \right)}}{\sin{\left(x \right)}}\, dx$$$。
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