Hey, I just need you guys to help verify that I got the correct answers on some of the even integration problems in my book. If one of them is incorrect, I'll post my work and hopefully can find out where I went wrong. Thanks!(adsbygoogle = window.adsbygoogle || []).push({});

1. [tex]\int[/tex] xcos(x[tex]^{2}[/tex])dx = [tex]\frac{1}{2}[/tex] sin(x[tex]^{2}[/tex]) +C

2. [tex]\int[/tex] x[tex]^{2}[/tex]cos(x)dx = x[tex]^{2}[/tex]sinx + 2xcosx - 2sinx + C

3. [tex]\int[/tex] x[tex]^{2}[/tex]e[tex]^{-x}[/tex]dx = -e[tex]^{-x}[/tex](x[tex]^{2}[/tex] +2x + 2) + C

4. [tex]\int[/tex] e[tex]^{x}[/tex]sinxdx = [tex]\frac{1}{2}[/tex](-e[tex]^{x}[/tex]cosx + e[tex]^{x}[/tex]sinx) + C

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# Indefinite Intergrals

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