Print Page | Close Window

calculus help

Printed From: Tippmann Paintball
Category: News And Views
Forum Name: Thoughts and Opinions
Forum Description: Got something you need to say?
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=128441
Printed Date: 08 February 2026 at 12:34pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: calculus help
Posted By: phillll227
Subject: calculus help
Date Posted: 09 March 2005 at 9:56pm
for anyone who has taken calc-
S= integral sign

i need to evaluate S(sin(x^.5)dx)

i know its not likely, but any help is appreciated

edit: i'm trying u substitutions and integration by parts

double edit: the answer is 2(sin(x^.5)-(x^.5)(cos(x^.5)))+c, i just need to know how to get it

-------------






Replies:
Posted By: Hysteria
Date Posted: 09 March 2005 at 9:59pm
Failing Algebra II...


Posted By: Frozen
Date Posted: 09 March 2005 at 10:02pm


I'm so glad I didn't take Calculus.


Posted By: Bauerp0weR 18
Date Posted: 09 March 2005 at 10:06pm

I'm in Adv Algebra and Trig H...

did some of that sin cos stuff last year but i have no idea what an integral sign is or what your solving for... sorry dude



-------------
Black Smart Parts Ion
Halo B
Check-It Unimount
macroline
68/45 Pure Energy tank


Posted By: SeaWolf
Date Posted: 09 March 2005 at 10:23pm
i dont see how they got that...   

it looks like a quotient rule or something... but that's for differentiation, not integrating...

grr... u gotta tell me once u figure it out.

-------------
   


Posted By: phillll227
Date Posted: 09 March 2005 at 11:01pm
I'm still working on it.. I'll keep you updated

-------------





Posted By: phillll227
Date Posted: 09 March 2005 at 11:13pm
Well folks, I'm giving up...
2 words

screw calc!!

-------------





Posted By: procarbinefreak
Date Posted: 09 March 2005 at 11:15pm
give me a sec... i'll have an answer for you in a minute... i'm in calc 3 in college 

i stand mistaken... unfortunately... we haven't gotten to those kind of integrals... at first glance i though i could do it... sorry!


Posted By: :ShockeR_ratm:
Date Posted: 09 March 2005 at 11:15pm
hahahhaha, yea right

-------------

Nobody ever suspects the fun police!


Posted By: phillll227
Date Posted: 09 March 2005 at 11:45pm
I'm still working on it (must be crazy), and I've realized I'm going to have to make some sort of substitution for sin(x^.5) and then use integration by parts, I'm just not sure of the correct way to substitute. All help and any more help is greatly appreciated.

BTW procarbinefreak, this is interesting, I'm only in AP calc AB

-------------





Posted By: procarbinefreak
Date Posted: 10 March 2005 at 9:41am
well... our school breaks it up a lot... calc 1 was through derivatives... calc 2 was through integrals and substitution.  eventually this quarter we'll get into parts... just not as of yet. 

I have to take calc 1-4 and differential equations, so there's a lot more for me to learn.  and i just don't remember doing integration by parts from last year in high school. 


Posted By: reifidom
Date Posted: 10 March 2005 at 9:56am
I've had this stuff, but I don't know if I remember enough to be useful to you here. I'm really horrible at the trig stuff because I took pre-calc instead of trig before stepping into calc I. If I had known I would have definetly taken the trig first.

I'll mess with it and if I can come up with anything that might help I'll post it. But please, don't hold your breath. :)

-------------



Posted By: phillll227
Date Posted: 10 March 2005 at 3:40pm
OK i got it..


the key was to set U equal to x^.5, then x=u^2, dx=2udu

-------------





Posted By: MetallicaESPa5
Date Posted: 10 March 2005 at 3:45pm
Yeah......i'm in geometry.

-------------



Posted By: SeaWolf
Date Posted: 10 March 2005 at 4:50pm
Originally posted by phillll227 phillll227 wrote:

OK i got it..


the key was to set U equal to x^.5, then x=u^2, dx=2udu


...would have never thought of that...

-------------
   



Print Page | Close Window

Forum Software by Web Wiz Forums® version 12.04 - http://www.webwizforums.com
Copyright ©2001-2021 Web Wiz Ltd. - https://www.webwiz.net