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Messages - rC

Pages: 1 ... 616263 6465 ... 360
1861
The Flood / Re: why are Mexicans so gross?
« on: November 23, 2015, 05:13:45 PM »
Indians*

1862
The Flood / Re: Anyone else feel this way?
« on: November 18, 2015, 10:02:42 PM »

1863
Septagon / cheat explain this shit
« on: November 18, 2015, 08:04:20 PM »

1864
The Flood / Re: how long is your refractory period?
« on: November 18, 2015, 10:22:06 AM »
weeks

1865
Serious / Re: Minority students protesting colleges in numerous states
« on: November 18, 2015, 10:21:30 AM »
Heard that these peeps said that their protests is way more important than the Paris attacks because it took their spotlight.
#BlackLivesDontMatter
fuck france, black lives matter

1866
The Flood / Re: can someone please explain this shit
« on: November 18, 2015, 10:17:57 AM »
http://www.wolframalpha.com/input/?i=is+integral+of+sintcost+%3D%3D+-.5cos%5E2t
http://www.wolframalpha.com/input/?i=is+integral+of+sintcost+%3D%3D+.5sin%5E2t

how the fuck is sin^2(x)/2 NOT the integral of sinxcosx?

here's how i got sin^2(x)/2

integral(sinxcosxdx)
u=sinx
du=cosxdx
integral(udu) = (u^2)/2
sin^2(x)/2 + c


THIS IS FUCKING CORRECT WHY IS IT NOT
the integral of sinxcosxdx isn't sin^2(x)/2
it's sin^2(x)/2 + C

sin^2(x) + cos^(x) = 1
sin^2(x) = 1 - cos^2(x)
sin^2(x)/2 = .5 - cos^2(x)/2

sin^2(x)/2 + C is equivalent to  -cos^2(x)/2 + C
but the constant doesn't matter in a definite integral, right?

1867
The Flood / Re: can someone please explain this shit
« on: November 17, 2015, 03:54:05 PM »
how the fuck is sin^2(x)/2 NOT the integral of sinxcosx?

There are two correct answers.

"Not always" doesn't mean "isn't".
also, if you evaluate it from 0 to 2pi (this is just part of a longer problem), you get 0, but it should be 3... it is 3 if you go the cosine route, but yeah.


Well your u/du substitution is correct so just use that. Wolfram sucks ass at trig calc. It's different based on which factor you use for u.

.5sin^2(x) + C = -.5cos^2(x) + c, but their constants are not equal.
Why do I get two different answers when I evaluate it though? I just wanna understand what went wrong.

Because my understanding is that the constant doesn't matter when you're solving a definite integral.

1868
The Flood / Re: can someone please explain this shit
« on: November 17, 2015, 02:46:34 PM »

1869
The Flood / Re: just went to the gym for the first time in over 2 weeks
« on: November 17, 2015, 02:43:09 PM »
smoke weed
i'm taking a little break from the ganja until i'm all finished with this semester

plus i'm unemployed now so i have to save my money for housing and food costs :-\
lol fucking loser
at least i'm not a NERD

go play with your calculator or something
IM NOT AZN

1870
The Flood / Re: can someone please explain this shit
« on: November 17, 2015, 02:42:41 PM »
how the fuck is sin^2(x)/2 NOT the integral of sinxcosx?

There are two correct answers.

"Not always" doesn't mean "isn't".
also, if you evaluate it from 0 to 2pi (this is just part of a longer problem), you get 0, but it should be 3... it is 3 if you go the cosine route, but yeah.

1871
The Flood / Re: can someone please explain this shit
« on: November 17, 2015, 02:42:13 PM »
you can get -0.5*cos^2 and 0.5*sin^2

don't sweat it, you're right.
wolfram alpha says otherwise. also, if you evaluate it from 0 to 2pi (this is just part of a longer problem), you get 0, but it should be 3... it is 3 if you go the cosine route, but yeah.

1872
The Flood / Re: just went to the gym for the first time in over 2 weeks
« on: November 17, 2015, 02:37:37 PM »
smoke weed
i'm taking a little break from the ganja until i'm all finished with this semester

plus i'm unemployed now so i have to save my money for housing and food costs :-\
lol fucking loser

1873
The Flood / Re: just went to the gym for the first time in over 2 weeks
« on: November 17, 2015, 02:21:30 PM »
smoke weed

1874
The Flood / Re: can someone please explain this shit
« on: November 17, 2015, 02:15:26 PM »
Lol you're retarded
no seriously i have a calc 2 exam in two hours, and this is calc 1 shit, pls help

1875
The Flood / can someone please explain this shit
« on: November 17, 2015, 02:11:50 PM »
http://www.wolframalpha.com/input/?i=is+integral+of+sintcost+%3D%3D+-.5cos%5E2t
http://www.wolframalpha.com/input/?i=is+integral+of+sintcost+%3D%3D+.5sin%5E2t

how the fuck is sin^2(x)/2 NOT the integral of sinxcosx?

here's how i got sin^2(x)/2

integral(sinxcosxdx)
u=sinx
du=cosxdx
integral(udu) = (u^2)/2
sin^2(x)/2 + c


THIS IS FUCKING CORRECT WHY IS IT NOT

1876
The Flood / Re: Anonymous declares war on ISIS
« on: November 17, 2015, 01:02:06 AM »
What are losers who live in their parents basements gonna do?

Potentially, they can find just about anything. Plans, hideouts, locations of leaders, a good number of stuff.

Now if only they didn't use those skills to make epilepsy websites flash and other such hijinks.
you're fucking insane if you think that AHNOONEEMOUS could figure out anything that uganda's intelligence agency couldn't

1877
Serious / Re: Statistics 101: Measures of central tendency
« on: November 15, 2015, 09:26:55 AM »
i love me some stats nigga, let's take the natural log of our data and analyze that shit with the normal model cuz

1878
The Flood / Re: Whatever happened to SpartainKen15?
« on: November 14, 2015, 12:38:48 PM »
i should teach you bullies a lesson and take down that song
not if i upload it again first
not if i suck your dick no homo

1879
The Flood / Re: Whatever happened to SpartainKen15?
« on: November 14, 2015, 12:32:14 PM »
i should teach you bullies a lesson and take down that song

1880
Serious / Re: Where do you draw the line when it comes to humor?
« on: November 14, 2015, 09:19:42 AM »
lol @ all the edgy fags saying "i don't"

1881
The Flood / Re: Americans, I have to ask you something important.
« on: November 13, 2015, 09:51:14 AM »
sorry that we care about shit surviving shipping, fucking retard. mod me.

1882
25OOO
*25000

is your 0 key broken?

I find O's to be more aesthetically pleasuring than 0's

My t key is broken however and I need to copy paste it everytime which is annoying as fuck

And to do capital T's I have to type in Tyrone so that it corrects it to spell it with a capital letter and then erase the yrone
youre a supid person

1883
The Flood / Re: Accidentally had sex with friends girlfriend
« on: November 12, 2015, 10:02:01 PM »
can you stop stealing my discussion?
you stole it from me you degenerate whore


look at the time stamps you guy.
fuck off with your gay shit, faggot. the grownups are talking.

are you fucking kidding me?

if I was in the same room as you I'd throw you around in the room
I'll fucking stomp your fucking shit in bro, ill fucking shoot you asshole

what is your height and weight?
six fucking eight, manlet faggot

take off the high heels you supreme fag
ill fucking CUT you cuz
sorry I had to leave on a vacation.

lets try to be calm this time around,

i think i will update my original post shortly tho.
dude this blew my mind

1884
The Flood / Re: Do you talk about sexual shit...
« on: November 12, 2015, 09:58:57 PM »
VERY OFTEN oops caps

1885
No, I never want to talk to one person all the time.
that's because you're a fucking sociopath

1886
The Flood / Re: Funner Facter
« on: November 12, 2015, 10:37:47 AM »
IM

NOT

FUCKING

FAT

YOU

STUPID

PIECE

OF

SHIT

1887
The Flood / Re: Has anyone here done lean?
« on: November 12, 2015, 10:36:56 AM »
Why the fuck do rapper drink so much of it then

1888
The Flood / Re: I need some help.
« on: November 12, 2015, 10:24:25 AM »
Holy shit, everyone was so unhelpful in this thread

Sol, if you're serious, ask in the skype group, goddamn

1889
The Flood / Has anyone here done lean?
« on: November 12, 2015, 10:23:00 AM »
What's it like?

1890
The Flood / Re: i love the smell of them bricks
« on: November 12, 2015, 10:22:26 AM »
You got that slab niqqa?
yeah nigga, got dat drank 2

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