Integration Help v2

virtueixi

Platinum Member
Jun 28, 2003
2,781
0
0
Why is it that whenever I post h.w help I get flamed but when someone else does twice........:confused::cool::disgust::eek::disgust::cool::confused::clock::camera::brokenheart::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips::|:moon::music::moon::|:lips::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips::|:moon::music:
rolleye.gif
rose.gif
rolleye.gif
:music::moon::|:lips::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips::|:moon::music::moon::|:lips::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips:
 

MrCodeDude

Lifer
Jun 23, 2001
13,674
1
76
Originally posted by: Goosemaster
u=x
a=2

du=1/a arctan u/a


that should enough to get you through it:evil:
I have no idea how you go that. How does dU = 1/a arctan u/a if U = x ?
 

MrCodeDude

Lifer
Jun 23, 2001
13,674
1
76
Originally posted by: virtueixi
Why is it that whenever I post h.w help I get flamed but when someone else does twice........:confused::cool::disgust::eek::disgust::cool::confused::clock::camera::brokenheart::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips::|:moon::music::moon::|:lips::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips::|:moon::music:
rolleye.gif
rose.gif
rolleye.gif
:music::moon::|:lips::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips::|:moon::music::moon::|:lips::light::heart::gift::frown::evil::eek::disgust::cool::confused::clock::camera::brokenheart::D:beer::beer::D:brokenheart::camera::clock::confused::cool::disgust::eek::evil::frown::gift::heart::light::lips:
Only a-holes flame.
 

Goosemaster

Lifer
Apr 10, 2001
48,775
3
81
Originally posted by: MrCodeDude
Originally posted by: Goosemaster
u=x
a=2

du=1/a arctan u/a


that should enough to get you through it:evil:
I have no idea how you go that. How does dU = 1/a arctan u/a if U = x ?

nevermind...I screwed it up...

u= arctan(x/2) du= dx/(4 +x^2) dx=(4 + x^2) du

INT(

( u / (4+ x^2) ) ( 4 + x^2 ) du the (4 + x^2) cancel out


INT of arctan^2 (x/2) is

xarctan(x/2) - ln(1+ u^2) ^ 1/2 + c

:D