Search the archive:
Simviation Main Site
|
Site Search
|
Upload Images
Simviation Forum
›
General
›
General Discussion
› Please help me!
(Moderators: Mitch., Fly2e, ozzy72, beaky, Clipper, JBaymore, Bob70, BigTruck)
‹
Previous Topic
|
Next Topic
›
Pages:
1
2
Please help me! (Read 450 times)
Dec 6
th
, 2003 at 9:42pm
Jared
Offline
Colonel
I'd rather be flying...
Uniontown, Ohio
Gender:
Posts: 12621
Hey all! I need help again! I’ve gone through 32 of 33 problems on my Take home calculus test which was comprehensive. Unfortunately I have not been able to figure out how to solve the last one. I would appreciate any information that anyone might be able to provide.
Thanks,
Jared
Evaluate the following integral at the given points:
⌠ (X + 1) / (X2 + 2X) dx
evaluated at X = 0 for the lower bound, and X = 1 for the upper bound
(The little box in the beginning of the equation is the integral sign..)
Back to top
IP Logged
Reply #1 -
Dec 7
th
, 2003 at 6:08am
Polynomial
Offline
Colonel
Health is merely the slowest
possible way to die.
Brisbane, Australia
Gender:
Posts: 1951
is that x to the power of 2?
Back to top
IP Logged
Reply #2 -
Dec 7
th
, 2003 at 6:39am
Ivan
Offline
Colonel
No, I'm NOT Russian, I
only like Russian aircraft
The netherlands
Gender:
Posts: 6058
yes i think
Write down the formula on paper (probably you've done that already
Make that into the formula for the line describing the angle (formula, not degrees) of the line that follows the formula in every point.
Put 0.00001 in for the lower
and 0.99999 for the upper limit
Russian planes:
IL-76 (all standard length ones)
,
Tu-154 and Il-62
,
Tu-134
and
An-24RV
&&&&AI flightplans and repaints can be found
here
Back to top
IP Logged
Reply #3 -
Dec 7
th
, 2003 at 8:41am
Polynomial
Offline
Colonel
Health is merely the slowest
possible way to die.
Brisbane, Australia
Gender:
Posts: 1951
Ans = (x+1)*ln(x^2+2*x) + C
because differentiating this;
let y = a * ln u where u = x^2+2*x and a = x + 1
dy/dx = a / u
dy/dx = (x+1) / (x^2+2*x)
Back to top
IP Logged
Reply #4 -
Dec 7
th
, 2003 at 11:00am
Jared
Offline
Colonel
I'd rather be flying...
Uniontown, Ohio
Gender:
Posts: 12621
You guys have got the same answer that I have already been able to find using substitution, however if you take the dy/dx and do:
F(1) - F(0) like we're supposed to do to get the area under the curve, you end up takign the natural log of 0 which is undefined...
One of the other guys from the class went to the tutoring center and got all of the answers, and for this problem they ended up with a 2.25, but he doesn't have any work to show how he got it...
Back to top
IP Logged
Reply #5 -
Dec 7
th
, 2003 at 11:03am
Lethal.Ambition
Offline
Colonel
They call me John.
Florida
Gender:
Posts: 1563
Well thats not good
"Show your work" is proly my teachers fav saying.
You know, all that I think I prefer taking pre-calculus than Algebra 2!!!
Oderint Dum Metuant - Let them hate as long as they fear.&&Proud member of the
=XE= Xtreme Eagles
&&Oderint Dum Metuant&&
Back to top
IP Logged
Reply #6 -
Dec 7
th
, 2003 at 11:13am
Jared
Offline
Colonel
I'd rather be flying...
Uniontown, Ohio
Gender:
Posts: 12621
I don't know...Calculus can involve lots of algebra also..
I'm not good at algebra, but once I solve this problem, I'll be done with all of the math classes that I have to take! Translation? No more math EVER! Yay!
Back to top
IP Logged
Reply #7 -
Dec 7
th
, 2003 at 11:22am
Lethal.Ambition
Offline
Colonel
They call me John.
Florida
Gender:
Posts: 1563
Wait, is that like your final?
Oderint Dum Metuant - Let them hate as long as they fear.&&Proud member of the
=XE= Xtreme Eagles
&&Oderint Dum Metuant&&
Back to top
IP Logged
Reply #8 -
Dec 7
th
, 2003 at 11:42am
flyboy 28
Offline
Colonel
Jacksonville, FL
Posts: 13323
I think I'll stick with Algebra 2, thank you...
Back to top
IP Logged
Reply #9 -
Dec 7
th
, 2003 at 11:43am
Jared
Offline
Colonel
I'd rather be flying...
Uniontown, Ohio
Gender:
Posts: 12621
Yup! final question to be solved! I was able to get the rest of them myself, but this last one here is just bugging me more than anything else...
I'm sure that I could leave it blank or write it as undefined, but i wanted to be sure to check all my bases and make sure that I did an adequate amount of work before I called it quits...
Back to top
IP Logged
Reply #10 -
Dec 7
th
, 2003 at 7:13pm
Polynomial
Offline
Colonel
Health is merely the slowest
possible way to die.
Brisbane, Australia
Gender:
Posts: 1951
im using an almighty graphics calculator with integral function and it gives me an error! How baffling!?! ???
Back to top
IP Logged
Reply #11 -
Dec 7
th
, 2003 at 8:02pm
Jared
Offline
Colonel
I'd rather be flying...
Uniontown, Ohio
Gender:
Posts: 12621
Yeah, I got the same problem usign my calculator, also got the information from the guy who went to see the tutor, and from a retired physicist also...
Unfortunately they both got different answers...
Now I'm still trying to figure it out! And it's driving me crazy!
Back to top
IP Logged
Reply #12 -
Dec 7
th
, 2003 at 8:46pm
Lethal.Ambition
Offline
Colonel
They call me John.
Florida
Gender:
Posts: 1563
I say go with the retired guy. then again, i am just 14 yrs old! ???
Oderint Dum Metuant - Let them hate as long as they fear.&&Proud member of the
=XE= Xtreme Eagles
&&Oderint Dum Metuant&&
Back to top
IP Logged
Reply #13 -
Dec 7
th
, 2003 at 8:50pm
Jared
Offline
Colonel
I'd rather be flying...
Uniontown, Ohio
Gender:
Posts: 12621
lol...unfortunately the retired guy gave me a negative number...which looking at the graph of the function proves that to be wrong...
whereas the guy who talked to the tutor had a reasonable answer of 2.25...
Back to top
IP Logged
Reply #14 -
Dec 7
th
, 2003 at 8:51pm
Lethal.Ambition
Offline
Colonel
They call me John.
Florida
Gender:
Posts: 1563
why look at the negative side of things?
All it takes is to remove the -
its not the SAT folks!
Oderint Dum Metuant - Let them hate as long as they fear.&&Proud member of the
=XE= Xtreme Eagles
&&Oderint Dum Metuant&&
Back to top
IP Logged
Pages:
1
2
‹
Previous Topic
|
Next Topic
›
« Home
‹ Board
Top of this page
Forum Jump »
Home
» 10 most recent Posts
» 10 most recent Topics
Current Flight Simulator Series
- Flight Simulator X
- FS 2004 - A Century of Flight
- Adding Aircraft Traffic (AI) & Gates
- Flight School
- Flightgear
- MS Flight
Graphic Gallery
- Simviation Screenshots Showcase
- Screenshot Contest
- Edited Screenshots
- Photos & Cameras
- Payware Screenshot Showcase
- Studio V Screenshot Workshop
- Video
- The Cage
Design Forums
- Aircraft & 3D Design
- Scenery & Panel Design
- Aircraft Repainting
- Designer Feedback
General
- General Discussion ««
- Humour
- Music, Arts & Entertainment
- Sport
Computer Hardware & Software Forum
- Hardware
- Tweaking & Overclocking
- Computer Games & Software
- HomeBuild Cockpits
Addons Most Wanted
- Aircraft Wanted
- Other Add-ons Wanted
Real World
- Real Aviation
- Specific Aircraft Types
- Autos
- History
On-line Interactive Flying
- Virtual Airlines Events & Messages
- Multiplayer
Simviation Site
- Simviation News & Info
- Suggestions for these forums
- Site Questions & Feedback
- Site Problems & Broken Links
Combat Flight Simulators
- Combat Flight Simulator 3
- Combat Flight Simulator 2
- Combat Flight Simulator
- CFS Development
- IL-2 Sturmovik
Other Websites
- Your Site
- Other Sites
Payware
- Payware
Old Flight Simulator Series
- FS 2002
- FS 2000
- Flight Simulator 98
Simviation Forum
» Powered by
YaBB 2.5 AE
!
YaBB Forum Software
© 2000-2010. All Rights Reserved.
Pages: 1 
