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Homework Help
Calculus and Beyond Homework Help
Substitution and Integration by Parts
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[QUOTE="sashab, post: 4666246, member: 500000"] [h2]Homework Statement [/h2] First make a substitution and then use integration by parts to evaluate the integral. ∫x[itex]^{7}[/itex]cos(x[itex]^{4}[/itex])dx [h2]Homework Equations[/h2] Equation for Substitution: ∫f(g(x))g'(x)dx = ∫f(u)du Equation for Integration by Parts: ∫udv = uv - ∫vdu [h2]The Attempt at a Solution[/h2] So here's my attempted solution [ATTACH=full]167468[/ATTACH] I made a substitution and tried using integration by parts twice but I got stuck on the last line since it turns out to be zero... I know I went wrong somewhere but I can't seem to find my mistake. Any help would be really appreciated! Thanks :) [/QUOTE]
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Calculus and Beyond Homework Help
Substitution and Integration by Parts
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