已知函数 f(x)=∫0xet2sint dtf(x) = \int_{0}^{x} e^{t^2} \sin t \, dt,g(x)=∫0xet2dt⋅sin2xg(x) = \int_{0}^{x} e^{t^2} dt \cdot \sin^2 x,则()
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