ATAR Notes: Forum

VCE Stuff => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematics => Topic started by: Tea.bag on April 16, 2009, 08:23:55 pm

Title: integrate
Post by: Tea.bag on April 16, 2009, 08:23:55 pm
how do u integrate

Title: Re: integrate
Post by: vibs23 on April 16, 2009, 08:39:36 pm
use the process of substitution;

turn u = x^2 +1


And follow on from  there
Title: Re: integrate
Post by: vibs23 on April 16, 2009, 08:42:29 pm
i cant post whole solution because i cant figure out how you type all the stuff in, but it shud be easy from there on....
Title: Re: integrate
Post by: shinny on April 16, 2009, 08:46:17 pm
I think everyone's missing the typo'd square root. I imagine it's meant to cover the entire denominator so that complicates things no?

EDIT: Pfft you deleted your post =P
Title: Re: integrate
Post by: Flaming_Arrow on April 16, 2009, 08:52:50 pm
i think he means


Title: Re: integrate
Post by: vibs23 on April 16, 2009, 08:55:22 pm
yeh  i couldnt figure out what marshmallow meant, just turn everything inside the square root = u.

So the u equation shud look like

U-1/(U^(1/2))

Can someone tell me how you guys who do those special typing?
Title: Re: integrate
Post by: Tea.bag on April 16, 2009, 08:57:25 pm
yea..i know all that but what about the

dx = du/2x
Title: Re: integrate
Post by: Tea.bag on April 16, 2009, 08:59:33 pm
im guessin its something to do with hyperbolic functions?
Title: Re: integrate
Post by: enwiabe on April 16, 2009, 09:09:50 pm
yeah teabag

do it in parts

i was discussing it with mao on MSN, he knows latex so he'll be posting the soln
Title: Re: integrate
Post by: Mao on April 16, 2009, 09:29:41 pm
Let













apologies for the delay, really rusty on this stuff, messed up negatives and identities everywhere.