i know i'm new so possibly disregard the dumb questions - i'm guessing this is something for school and not fun?

anyway, i haven't looked at this kinda crap for a while but i'll give it a go tomorrow when i'm not buzzed if no one else has.

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quote:

Originally posted by gtron i know i'm new so possibly disregard the dumb questions - i'm guessing this is something for school and not fun? anyway, i haven't looked at this kinda crap for a while but i'll give it a go tomorrow when i'm not buzzed if no one else has.

why dont you try it now. it should be easier when your stoned

the answer should be zero in my opinion. if you solve the integral the final answer = 4sin(n*pi)/(n*pi) and sin(n*pi) = 0 for n=1,2,3...

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Originally posted by twilightki : It feels like something you'd listen to at 4 in the morning, or listen to in your car while you're going in a tunnel.

quote:

Originally posted by Nrg2Nfinit yeah me 2 fuck someone must know how to do this shit guuuuuuuuuuuuuuuuuuuuuuurn

I'll take a look at it. been a few years since Ive had calc... but I made it through calc 1,2,3 and DiffEq...


So the question is whether or not I'll be able to remember this shit

i said its 42

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Check my calculation...I might be wrong. Been a while since I have solved these integrations. I used integration by parts.

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Originally posted by twilightki : It feels like something you'd listen to at 4 in the morning, or listen to in your car while you're going in a tunnel.

quote:

Originally posted by Omega_M Check my calculation...I might be wrong. Been a while since I have solved these integrations. I used integration by parts. http://i87.photobucket.com/albums/k..._m/integral.jpg

I almost got that! One of us is correct.

quote:

Originally posted by Omega_M Check my calculation...I might be wrong. Been a while since I have solved these integrations. I used integration by parts.

that looks like you just solved for the first part integral of 2cos(nTTx)



what i had up there posted that i crossed out on the left hand side.


The whole thing can be split up into two integrals the second integral is -xcos(nTTx) since your expanding (2-x)(cos(nTTx)

you have to also remember that when using cos for n= odd you will get different values then for N = even, since for whole numbers cos goes from - 1 to +1. When cos n is even cos gives you +1 and when its odd it gives you -1. therefore you must solve for when N= odd and when N= even.

Or better still, in a bit more detail. Using the functions and properties in the box.

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Originally posted by twilightki : It feels like something you'd listen to at 4 in the morning, or listen to in your car while you're going in a tunnel.

quote:

Originally posted by stevieboy32808 I almost got that! One of us is correct.

lol close but thats wrong.. why dont you guys take out all those nasty constants from the integrations to make your live easier

wait you did pull out the constants.. see i dont nkow integration by parts i just use the table method it works though.. i got the right solution ill post it.