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Integrate 2 x sin(x^2+1)
Integrate 2 x sin(x^2+1) pictures 5
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Integrate 2 x
Integrate 2 x sin(x^2+1)
integrate x 2 sin 2x 1 x 2
integrate 1 sin 2 x cos 2 x
integrate 2 x sin x 2 1