anonymous
  • anonymous
what is the integral of x sin x dx
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Possible intermediate steps: integral x sin(x) dx For the integrand x sin(x), integrate by parts, integral f dg = f g- integral g df, where f = x, dg = sin(x) dx, df = dx, g = -cos(x): = integral cos(x) dx-x cos(x) The integral of cos(x) is sin(x): = sin(x)-x cos(x)+constant
anonymous
  • anonymous
i found this explanation to be the most concise, as my explanation of the parts formula isn't too clear.
anonymous
  • anonymous
why is it concise? its standard

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anonymous
  • anonymous
integral u dv = uv - integral v du
anonymous
  • anonymous
oh... right... nvm...
anonymous
  • anonymous
because i remember there was a way to do it by substitution...
anonymous
  • anonymous
not this one im afraid
anonymous
  • anonymous
:)
anonymous
  • anonymous
ok thanks. i learned something too.

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