The IDEAL Forum

as this is an engineering clan and you have way too much time i got smth for you:
i need to solve two integrals with substitution and nobody in my semester got a clue how to do it. so it would be extremely cool, if some dank engineer with better knowledge than me could solve this and post it here. i need it finished at tuesday.

i wonder which of you mr sexiіs is the fastest to solve it,it probably isnt even that hard

42

Maybe this video helps? I could be wrong since it's been a while but I think this is what you're looking for. It's 100 timesb etter than all the German explanations I could find in 5 mins of googling. https://www.khanacademy.org/math/ap-cal ... -integrals

dunno whether you already know about this site: https://www.integral-calculator.com/
but it is really good for solving such integrals as it shows you the steps.
In the options you can also set the bounds if needed.

You just need to integrate those 2 and then substitute them from each other right?

I think those are two different integrals he must integrate as two separate tasks

See if you are able to solve it from here

i think you wrote down the wrong integral ^^
it is 1-x/1+x

Kriegerseele wrote:i think you wrote down the wrong integral ^^
it is 1-x/1+x

Just noticed, doesnt really matter for the part I wrote tho, you just change 4 to -4 (because 1-x/1+x)=-(x-1)/(x+1))

Xen wrote:Maybe this video helps? I could be wrong since it's been a while but I think this is what you're looking for. It's 100 timesb etter than all the German explanations I could find in 5 mins of googling. https://www.khanacademy.org/math/ap-cal ... -integrals

thats a good video,thx

with the help of lilsaah i got a result. would be great if some advanced mr sexiі could check for any mistakes

i solved the second now with the help of intranet. there is another task with a body of rotation, which i cant solve. if youre interested, i give you the information

post it in here plis I am interested to read it even though I cant help you solve it

Kriegerseele wrote:

Substitute: 1 with 0 then it's way easier!

if you draw that on paper you get fairly good result in 2 minutes



blue is the function youre integrating, and graph of similar resolution you can produce in 1 minute ez, and then you can immediately see its more than 0.5 but definitely less than 0.6 :XD

I feel inappropriate

@krygr

cant rly relate to the lastest literature but what helped me alot getting back into this was "https://www.thalia.de/shop/home/rubrikartikel/ID39576646.html?ProvID=11000522". its complexe math described with ez samples. sure worth a look.

Sekundenkleber wrote:DansGame

nice recent wn8 :^)

shouldnt have played 1 game without me, baddie