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InvisibleKid_Orgo
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Anybody remember their calculus?
    #7599211 - 11/05/07 04:42 PM (16 years, 2 months ago)

So I missed a class or two in Calc and I've got an assignment due at midnight tonight.

Here's a problem i don't even know how to approach.




Five shrooms to anyone that can help me pull my head out of my ass.


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


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OfflineTrancedShroom
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599285 - 11/05/07 05:02 PM (16 years, 2 months ago)

243, I think


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Offlinedisturbed
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599293 - 11/05/07 05:04 PM (16 years, 2 months ago)

Oh man I had to take 3 semesters of calc I should definitely remember how to do that but its been 4 years since I've done any calc. Give me a few min and ill try to give it a whirl but no promises.


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11/25/07 first time entrant ban lottery champion


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Offlinefreddurgan
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599300 - 11/05/07 05:06 PM (16 years, 2 months ago)

(t^4)/4

I think?


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OfflineDeathCompany
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599311 - 11/05/07 05:08 PM (16 years, 2 months ago)





done :thumbup:


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: freddurgan]
    #7599329 - 11/05/07 05:14 PM (16 years, 2 months ago)

Quote:

freddurgan said:
(t^4)/4

I think?




Nope, I don't think you can use t, and x^4/4 doesn't work either.


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: TrancedShroom]
    #7599331 - 11/05/07 05:15 PM (16 years, 2 months ago)

Quote:

TrancedShroom said:
243, I think




Swing and a miss.


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599342 - 11/05/07 05:19 PM (16 years, 2 months ago)

I know the fundamental theorem of calculus is involved, we're working with the derivative of an integral.

I just wish I understood exactly how this works.


EDIT: Okay, I just beat down the problem after this. I still have no idea how to go about it if the x is the lower limit.


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


Edited by Kid_Orgo (11/05/07 05:35 PM)


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599421 - 11/05/07 05:40 PM (16 years, 2 months ago)

AHA!

You can reverse the limits by putting a negative in front,

then subbing that bitch out yields
-x^3

Fuck y'all, no shrooms.


:grin:


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


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OfflineGr8fulJ420
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599437 - 11/05/07 05:48 PM (16 years, 2 months ago)

it was only 1 pt anyway!


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: Gr8fulJ420]
    #7599457 - 11/05/07 05:52 PM (16 years, 2 months ago)

Trust me, I need every point I can get.


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Offlinejohn706
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Re: Anybody remember their calculus? [Re: Kid_Orgo]
    #7599468 - 11/05/07 05:54 PM (16 years, 2 months ago)

you plus me equals us.


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Offlineskydog
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Re: Anybody remember their calculus? [Re: john706]
    #7599533 - 11/05/07 06:09 PM (16 years, 2 months ago)

f(x) = 94/4 - x4/4

f'(x) = -x3

You could do it that way, too :sun:

:meff:


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:yesnod::thumbup:


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Offlinesomeone not me
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Re: Anybody remember their calculus? [Re: skydog]
    #7599639 - 11/05/07 06:33 PM (16 years, 2 months ago)

First integrate with respect to t, then differentiate with respect to x. What do you get??


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Offlinesomeone not me
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Re: Anybody remember their calculus? [Re: someone not me]
    #7599663 - 11/05/07 06:37 PM (16 years, 2 months ago)

-3/4*x^3


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Offlinesomeone not me
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Re: Anybody remember their calculus? [Re: someone not me]
    #7599684 - 11/05/07 06:42 PM (16 years, 2 months ago)

This is a prime example of The Fundamental Theorem of Calculus.


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Offlinesomeone not me
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Re: Anybody remember their calculus? [Re: someone not me]
    #7599691 - 11/05/07 06:44 PM (16 years, 2 months ago)

sorry, -x^3


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Invisibleblkjkrabbit

Registered: 07/22/07
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Re: Anybody remember their calculus? [Re: someone not me]
    #7599738 - 11/05/07 06:55 PM (16 years, 2 months ago)

gah - hated calculus. stopped giving a fuck right when we got to integrals :banghead:


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OfflineGr8fulJ420
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Re: Anybody remember their calculus? [Re: blkjkrabbit]
    #7599813 - 11/05/07 07:09 PM (16 years, 2 months ago)

the only reason I made it thru Calc 1 is due to the tutoring by girl whom I was dating at the time. She graduated with a degree in mathematics and went on to get a teaching degree. I barely passed the class and did not retain a damn bit of it. (I also changed my major and didn't need any more calc)


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Offlineskydog
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Re: Anybody remember their calculus? [Re: someone not me]
    #7599855 - 11/05/07 07:18 PM (16 years, 2 months ago)

Quote:

someone not me said:
First integrate with respect to t, then differentiate with respect to x. What do you get??



Quote:

skydog said:
f(x) = 94/4 - x4/4

f'(x) = -x3

You could do it that way, too :sun:

:meff:




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Offlinesomeone not me
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Re: Anybody remember their calculus? [Re: skydog]
    #7599881 - 11/05/07 07:27 PM (16 years, 2 months ago)

Yeah you got it Skydog. I wasn't implying you got it wrong. Just putting in my two cents.


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: skydog]
    #7599958 - 11/05/07 07:41 PM (16 years, 2 months ago)

Well, I managed to use Maple to get 19/20 on this problem set.

I haven't learned anything, I'm still totally boned for the quiz tomorrow.

Also, I hope she doesn't look at this too closely.

Oh well.

Gonna get points, at least.

Skydog: I think we were expected to use some kind of substitution, but your explanation makes sense.

I think i'm gonna spend the next two hours studying, see if I can get any of this into my skull a little firmer.


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


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Invisiblemycogirl
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Re: Anybody remember their calculus? [Re: blkjkrabbit]
    #7599962 - 11/05/07 07:42 PM (16 years, 2 months ago)

Quote:

blkjkrabbit said:
gah - hated calculus. stopped giving a fuck right when we got to integrals :banghead:




I was the same way. Our prof would never tell us what anything was for, or what it did, and I would stay after every day, and bug him until he told me what we were doing.  How hard is it to say, "A derivative is a line that tells you the slope of a function at any given point."  Seriously.  When we got to integrals, I said, fuck it. I'm just doing this so grad schools will not throw out my app. A C+ in calc is good enough for me.


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InvisibleKid_Orgo
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Re: Anybody remember their calculus? [Re: mycogirl]
    #7600070 - 11/05/07 08:06 PM (16 years, 2 months ago)

If only my employer or my pride agreed with you.


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He was a cowboy in one of the seven days a week fights. No business, no hangout; no friends, nothing; just what you pick up and what you need.


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Invisibleblkjkrabbit

Registered: 07/22/07
Posts: 4,971
Re: Anybody remember their calculus? [Re: mycogirl]
    #7600194 - 11/05/07 08:31 PM (16 years, 2 months ago)

Quote:

mycogirl said:
Quote:

blkjkrabbit said:
gah - hated calculus. stopped giving a fuck right when we got to integrals :banghead:




I was the same way. Our prof would never tell us what anything was for, or what it did, and I would stay after every day, and bug him until he told me what we were doing.  How hard is it to say, "A derivative is a line that tells you the slope of a function at any given point."  Seriously.  When we got to integrals, I said, fuck it. I'm just doing this so grad schools will not throw out my app. A C+ in calc is good enough for me.




funny - i got a c+ too. high five :rockon:


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