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 Message Boards » » Integration... Page [1]  
StayPuff
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I need some help on integrating the following 3 problems. It has been so long since I have integrated problems at this level so I have forgotten how to do so.

1. x^3/sqrt(42-x^2)

2. 1/(x-sqrt(x+2))

3. x/sqrt(3-2x-x^2)

1/20/2010 8:30:08 PM

jwb9984
All American
14039 Posts
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integration by parts

1/20/2010 8:51:57 PM

pooljobs
All American
3481 Posts
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http://www.wolframalpha.com

1/20/2010 10:15:35 PM

NeuseRvrRat
hello Mr. NSA!
35376 Posts
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maple

1/20/2010 10:22:39 PM

2009ncsu
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Mathcad

1/21/2010 12:16:23 AM

TenaciousC
All American
6307 Posts
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maple

1/21/2010 12:24:45 AM

MaximaDrvr

10401 Posts
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any you call yourself a teacher

1/21/2010 2:31:41 AM

FykalJpn
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nobody likes integration by parts

1/21/2010 12:30:02 PM

benXJ
All American
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TI-89?

2/2/2010 3:33:50 PM

mantisstunna
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didn't they do that back in the 60s for African American students?

2/2/2010 8:21:02 PM

Firehoze
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Visit http://www.firehoze.com for help with Integration! Lessons are organized into a searchable catalog, you can also engage in online discussion with instructors and other students.

Lessons explaining integration with examples can be found here:

http://www.firehoze.com/searches?search_criteria=integration&x=0&y=0

3/1/2010 11:52:27 AM

wdprice3
BinaryBuffonary
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^ha. shameless plug?

3/1/2010 11:53:40 AM

Firehoze
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The site is currently in development phase and is building a base of very helpful lessons and topics. Firehoze also presents a good opportunity for students as well. Once becoming an instructor and uploading a lesson on a topic of your choice, you have the opportunity to receive royalties each time your lesson is purchased. There is no commitment to teaching lessons and plenty of opportunity!

From a fellow NCSU graduate...this site is worth looking into!

3/1/2010 12:10:06 PM

FroshKiller
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ad.aspx

3/1/2010 12:51:49 PM

Firehoze
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Our Ad is currently in the works, it will most likely will be displayed on the School Tool page and the Message Boards.

3/1/2010 1:04:31 PM

DPK
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http://www.wolframalpha.com/input/?i=integrate+x^3%2Fsqrt%2842-x^2%29
http://www.wolframalpha.com/input/?i=integrate+1%2F%28x-sqrt%28x%2B2%29%29
http://www.wolframalpha.com/input/?i=integrate+x%2Fsqrt%283-2x-x^2%29

[Edited on March 1, 2010 at 10:04 PM. Reason : -]

3/1/2010 10:03:50 PM

mantisstunna
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3/1/2010 11:38:29 PM

neolithic
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Remind me how you integrate something like exp( -abs(x-a)/b ) dx. Is there a closed form of this or do you have to break it up for x < a and x > a?

4/8/2010 4:23:33 PM

evan
All American
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Quote :
"TI-89"

4/12/2010 11:27:13 AM

OZONE
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Quote :
"aga"

5/9/2010 8:11:21 AM

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