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raheen
Group Title
solve this integration in details using integration by parts:(−e−x)cosxdx
 3 years ago
 3 years ago
raheen Group Title
solve this integration in details using integration by parts:(−e−x)cosxdx
 3 years ago
 3 years ago

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raheen Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits (e ^{x})cosx dx\]
 3 years ago

imranmeah91 Group TitleBest ResponseYou've already chosen the best response.1
\[\int\limits (e ^{x})cosx dx\]
 3 years ago

jahtoday Group TitleBest ResponseYou've already chosen the best response.1
\[\int\limits_{}^{}udv=uv\int\limits_{}^{}vdu\] u=cos(x) \[dv=e^{x}\]
 3 years ago

jahtoday Group TitleBest ResponseYou've already chosen the best response.1
so: \[\int\limits_{}^{}e ^{x}\cos(x)dx=e ^{x} \cos(x)\int\limits_{}^{}e^{x}\sin(x)\]
 3 years ago

jahtoday Group TitleBest ResponseYou've already chosen the best response.1
and u=sin(x) dv=e^(x) so: \[\int\limits_{}^{}e^{x}\cos(x)dx=e^{x}\cos(x)e^{x}\sin(x)+\int\limits_{}^{}e^{x}\cos(x)\]
 3 years ago

jahtoday Group TitleBest ResponseYou've already chosen the best response.1
subtract \[\int\limits_{}^{} e^{x}\cos(x) \] from both sides: \[2\int\limits_{}^{}e^{x}\cos(x)=e^{x}\cos(x)e^{x}\sin(x)\] divide each side by 2: \[\int\limits\limits_{}^{}e^{x}\cos(x)=(1/2)(e^{x}\cos(x)e^{x}\sin(x))+C\]
 3 years ago
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