/sci/ - Science & Math » Thread #14247592

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Anonymous Sat 19 Feb 23:17:49 2022 No.14247592 View Reply Original Report

Quoted By: >>14249612 >>14250570

Hey anon can you prove this uwu

Anonymous

Anonymous Sat 19 Feb 2022 23:21:45 No.14247616 Report

Quoted By: >>14247887 >>14247889

It is trivially obvious to even the most casual of observers that the integral evaluates to 1/n^n

Anonymous

Anonymous Sun 20 Feb 2022 00:43:14 No.14247887 Report

Quoted By:

>>14247616
Prove it fag

Anonymous

Anonymous Sun 20 Feb 2022 00:43:30 No.14247889 Report

Quoted By:

>>14247616
well the result will always be so negative and -1/n^n would only be true of 1 not 2,3,4 etc so yeah

Anonymous

Anonymous Sun 20 Feb 2022 01:16:42 No.14247995 Report

Quoted By: >>14249500 >>14249838

$-\sum_{k = 1}^n \frac{1}{k}$ .

Anonymous

Anonymous Sun 20 Feb 2022 15:50:38 No.14249500 Report

Quoted By: >>14249819

>>14247995
But 2 is -1.5 not -0.5

Anonymous

Anonymous Sun 20 Feb 2022 16:27:12 No.14249612 Report

Quoted By: >>14249741

>>14247592
Consider the integrand as 1 * ln(f(x)) and do parts. Gets rid of the ln.

Anonymous

Anonymous Sun 20 Feb 2022 17:18:55 No.14249741 Report

Quoted By:

>>14249612
The next integral in the integration by part sequence is not solvable using traditional integration techniques show work

Anonymous

Anonymous Sun 20 Feb 2022 17:52:51 No.14249809 Report

Quoted By:

If you let I_n be the result, try analyzing I_n - I_{n-1}. Since we have a log the difference can get a ratio inside that may simplify and give us a nice recurrence.

Anonymous

Anonymous Sun 20 Feb 2022 17:56:14 No.14249819 Report

Quoted By:

>>14249500
-1 - 0.5 = -1.5, retard

Anonymous

Anonymous Sun 20 Feb 2022 18:03:55 No.14249838 Report

Quoted By:

do the Taylor series for ln centered at 1. Plug in 1-x^(1/n). Integrate. You get a telescopic series. It reduces to >>14247995

Anonymous

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Anonymous Sun 20 Feb 2022 18:07:06 No.14249842 Report

Quoted By: >>14249857 >>14249894

I was tryna do something but it didn't work out well in the end

Anonymous

Anonymous Sun 20 Feb 2022 18:11:15 No.14249857 Report

Quoted By:

>>14249842
That limit at the end should be to 1, not 0 btw

Anonymous

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Anonymous Sun 20 Feb 2022 18:21:53 No.14249894 Report

Quoted By: >>14254035

>>14249842
Oops, I did the derivative wrong when doing the y-sub, and made a mistake on the last step. Pic rel is the correct answer

Anonymous

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Anonymous Sun 20 Feb 2022 21:20:49 No.14250570 Report

Quoted By:

>>14247592
No, I can't prove it. I'm retarded.

Anonymous

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Anonymous Sun 20 Feb 2022 23:58:40 No.14251155 Report

Quoted By: >>14251183 >>14251213

So, what is the answer bros?

Anonymous

Anonymous Mon 21 Feb 2022 00:05:55 No.14251183 Report

Quoted By:

>>14251155
I WILL post my gf's bobs if this gets solved, it's her homework and she's sitting right here.

Anonymous

Anonymous Mon 21 Feb 2022 00:17:16 No.14251213 Report

Quoted By: >>14251256

>>14251155
assuming by solve they mean find the zeros, then:
> 16y^3 - 25y = 0
> y(16y^2 - 25) = 0
> y(4y + 5)(4y - 5) = 0

y = 0; y = 5/4; y = -5/4

Anonymous

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Anonymous Mon 21 Feb 2022 00:29:05 No.14251256 Report

Quoted By: >>14251271

>>14251213
Shel'll get naked for another problem. (I guess it will be on a different board).

Anonymous

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Anonymous Mon 21 Feb 2022 00:30:39 No.14251262 Report

Quoted By: >>14251281 >>14251288 >>14255497

Anonymous

Anonymous Mon 21 Feb 2022 00:33:17 No.14251271 Report

Quoted By: >>14251281

>>14251256
2+x=5
post answer and pic or link to pic

Anonymous

Anonymous Mon 21 Feb 2022 00:34:53 No.14251281 Report

Quoted By: >>14251291

>>14251271
That's the answer to this: >>14251262 ?

Anonymous

Anonymous Mon 21 Feb 2022 00:36:21 No.14251288 Report

Quoted By: >>14251298

>>14251262
these are all basic 7th grade algebraic manipulation questions. Unless she's beyond saving, have her learn how to actually do these problems instead of whoring her tits out

Anonymous

Anonymous Mon 21 Feb 2022 00:37:22 No.14251291 Report

Quoted By: >>14251298

>>14251281
no, where in any of that do you see an X to solve for?

Anonymous

Anonymous Mon 21 Feb 2022 00:41:13 No.14251298 Report

Quoted By:

>>14251291
I'm an idiot it's not my homework.

>>14251288
This is for a science degree, math is just a prereq.

>>>/b/873072385

Anonymous

Anonymous Mon 21 Feb 2022 00:55:02 No.14251332 Report

Quoted By:

We did it all thanks boys.

Anonymous

Anonymous Mon 21 Feb 2022 20:17:05 No.14253704 Report

Quoted By:

bumpy

Anonymous

Anonymous Mon 21 Feb 2022 21:54:41 No.14254035 Report

Quoted By: >>14254190

>>14249894
also this is wrong the answer is alway decreasing it can't oscillate

Anonymous

Anonymous Mon 21 Feb 2022 23:11:41 No.14254190 Report

Quoted By:

>>14254035
It is correct according to wolfram alpha

Anonymous

Anonymous Tue 22 Feb 2022 12:56:37 No.14255497 Report

Quoted By:

>>14251262
h=143cm
w=88kg

Unironically tho your girlfriend has to work hard because this is very very basic shit, any 70+ iq person who went to school should be able to do this, no exceptions.

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