Integral of $$$\sin^{2}{\left(3 x^{4} \right)}$$$

The calculator will find the integral/antiderivative of $$$\sin^{2}{\left(3 x^{4} \right)}$$$, with steps shown.

Find $$$\int \sin^{2}{\left(3 x^{4} \right)}\, dx$$$.

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