Integral of $$$\left(- 3 \sin{\left(x \right)} + \cos{\left(x \right)}\right)^{2}$$$

The calculator will find the integral/antiderivative of $$$\left(- 3 \sin{\left(x \right)} + \cos{\left(x \right)}\right)^{2}$$$, with steps shown.

Find $$$\int \left(- 3 \sin{\left(x \right)} + \cos{\left(x \right)}\right)^{2}\, dx$$$.

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