Find the intergral of 2xsin(x²+1) dx Please make it step by step

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Q: intergral x^e^3x^2+1 dx

A: I=∫xe3x2+1dx Then let I1=∫xe3x2dx, I2=∫1.dx Then, I2=x Let fx=xe3x2

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A: Residue theorem

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A: Substitute   1-2x = t

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A: We are going to use integration by substitution method

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A: The answer is given below:

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A: Integrate by using trigonometric substitution

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A: Given,         ∫4+x2dx

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A: As per our guidelines we are supposed to answer only first three parts. Kindly repost others…

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