aaronburro Sup, B 52901 Posts user info edit post |
When doing a line integral that involves units, what are the units for the dX term? is it the inverse of the units in the bounds? 11/15/2010 8:42:53 PM |
McDanger All American 18835 Posts user info edit post |
thread delivers
[Edited on November 15, 2010 at 8:44 PM. Reason : .] 11/15/2010 8:44:23 PM |
ThePeter TWW CHAMPION 37709 Posts user info edit post |
X, top minus bottom 11/15/2010 8:44:25 PM |
lewisje All American 9196 Posts user info edit post |
dX has the same units as X 11/15/2010 8:45:31 PM |
aaronburro Sup, B 52901 Posts user info edit post |
told u it was a stupid math question, lol. i'm second guessing the hell out of myself right now >.< 11/15/2010 8:45:46 PM |
dweedle All American 77386 Posts user info edit post |
you should guess the derivative of the type of guessing you are doing to yourself right now 11/15/2010 8:46:36 PM |
McDanger All American 18835 Posts user info edit post |
lol dweedle 11/15/2010 8:59:00 PM |
GeniuSxBoY Suspended 16786 Posts user info edit post |
Quote : | "stupid math question " |
I got an A in calculus 3 but I will never forget the question that I asked that everyone in the class looked at me like I was the stupidest person in the world. Even after the class people came up to me and asked me wtf.
I still till this day have no idea why it was a stupid question, lol.11/15/2010 9:41:37 PM |
McDanger All American 18835 Posts user info edit post |
What was the question 11/15/2010 9:42:39 PM |
AlaskanGrown I'm Randy 4693 Posts user info edit post |
Quote : | "What was the question" |
11/15/2010 9:44:00 PM |
DivaBaby19 Davidbaby19 45208 Posts user info edit post |
the question, what was the question? 11/15/2010 9:45:24 PM |
GeniuSxBoY Suspended 16786 Posts user info edit post |
I don't remember the question, i just remember the response to the question.
We were doing 3-D volume problems and it was a question about how he worked his math on the board. 11/15/2010 9:45:31 PM |
McDanger All American 18835 Posts user info edit post |
I hate when people get judgmental about not seeing an algebraic move or fucking one up
Like (a) who has the fucking time to verify everything a million times and (b) who thinks math skill is just writing shit down correctly every time 11/15/2010 9:46:39 PM |
GeniuSxBoY Suspended 16786 Posts user info edit post |
To be fair, nobody can see inside your head, McDanger. Therefore, you have to write what's inside your head on paper so the teacher can accurately determine whether you know what you're doing or whether you're guessing and getting lucky. 11/15/2010 9:48:16 PM |
Shadowrunner All American 18332 Posts user info edit post |
Quote : | "I will never forget the question" |
Quote : | "I don't remember the question" |
11/15/2010 9:53:03 PM |
AlaskanGrown I'm Randy 4693 Posts user info edit post |
^I, too, was wondering this. 11/15/2010 9:54:15 PM |
LeonIsPro All American 5021 Posts user info edit post |
This question is questionable. 11/15/2010 9:55:19 PM |
dweedle All American 77386 Posts user info edit post |
11/15/2010 10:27:25 PM |
walkmanfades All American 3139 Posts user info edit post |
Quote : | "I don't remember the question, i just remember the response to the question." |
Well, what was the response?11/15/2010 10:28:18 PM |
dweedle All American 77386 Posts user info edit post |
i dont remember the response, i just remember how i felt afterwards
im reading all this recollection of the past w/ the wonder years voice saying it in my head 11/15/2010 10:29:44 PM |
McDanger All American 18835 Posts user info edit post |
Quote : | "To be fair, nobody can see inside your head, McDanger. Therefore, you have to write what's inside your head on paper so the teacher can accurately determine whether you know what you're doing or whether you're guessing and getting lucky." |
Yeah but sometimes you drop a sign and that doesn't make you a dummy11/15/2010 10:30:51 PM |
Spontaneous All American 27372 Posts user info edit post |
Always remember "+ C". 11/16/2010 1:33:49 AM |
GeniuSxBoY Suspended 16786 Posts user info edit post |
Quote : | "Yeah but sometimes you drop a sign and that doesn't make you a dummy" |
Whether you know what you're doing or not, a missed unit will result in the wrong answer. Whether you're working in construction or rocket science, a simple sign drop can mean major catastrophe. Sometimes you forget to covert units from standard to metric and you kill astronauts.11/16/2010 1:34:02 AM |
FAI756843 All American 908 Posts user info edit post |
heres a tricky question
x radians or degrees
is integral sin(x) the same for both? 11/16/2010 3:41:56 AM |
lewisje All American 9196 Posts user info edit post |
no
now it's known that the antiderivative of sin(x) with respect to x is -cos(x), if x is in radians
if x is in degrees, then the equivalent in radians is x*pi/180 so if Sin(x) and Cos(x) are the sin and cos functions "where x is in degrees" then Sin(x)=sin(x*pi/180), so the antiderivative of Sin(x) with respect to x is 180/pi*-cos(x*pi/180), which is -180/pi*Cos(x) 11/16/2010 4:17:26 AM |
raiden All American 10504 Posts user info edit post |
Quote : | "major catastrophe" |
]11/16/2010 7:29:42 AM |
NCSUStinger Duh, Winning 62425 Posts user info edit post |
i solved for dx and got this
11/16/2010 9:07:01 AM |