Solution to Problem 3: How to Differentiate x^x

Solution to Problem 3: How to Differentiate x^x

Envoyée le jeudi 01 mai 2008 09:26:57
par vorojtsov
Vue 5111 fois
Note 4.8 sur 25 vote(s)

I explicitly show how to differentiate x^x by x
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Commentaire(s)

AdminOnDuty

Yeah, but the way its written it looks like he's moving d/dx around as a term rather than the implied function that it is, namely the derivative of what follows. I was only stating that it 'looks' like he added an extra xlnx to the equation. A parenthetical treatment or moving the expression upstairs as in de^xlnx / dx = e^xlnx · dxlnx/dx may help the student understand that the d/dx is not a term unto itself but an application to what follows it.
dimanche 07 février 2010 12:37:15
xodn3300

@AdminOnDuty The derivative of e^u is e^u(u')
samedi 06 février 2010 01:37:16
Chrisoo9

smooth back talk dumbass maybe u should try an algarythm to hit me with a decent comeback next time maybe itl help you then
mardi 09 juin 2009 13:22:49
jfdude10

I think you are kinda useless like this
dimanche 07 juin 2009 21:19:49
Chrisoo9

i wasnt tryinto upset anyone im just saying d/dx · e ^ xlnx = e ^ xlnx · d/dx · xlnx doesnt put a table together or sew clothing maybe little measurments yea but not like this u dont c a firemen contruction a diagram with this and scamtics of the burning building hes gunna run into
vendredi 05 juin 2009 00:12:33
crazyklayguy

That's wrong! But I can't bother explaining why it's wrong.
jeudi 28 mai 2009 15:00:15
iridethewave

Look around your room. The tables, the technology, the decor. That MP3 player there. In order to develop any of its functional parts an Electrical Engineer had to have a firm understanding of double integration and eigenvalue form, that TV, a physicist had to have an in depth understanding of statistical mechanics to design those components. Everything requires math, it is the blood and language of the sciences. That is one of the most ignorant statements i've ever heard.
mercredi 27 mai 2009 14:51:54
Chrisoo9

i hate math its really kinda usless like this
dimanche 24 mai 2009 22:31:13
vs5799

wtf?
vendredi 15 mai 2009 17:07:39
halflife230

No, the derivative of e^x is e^x times the derivative of the exponent. So, for example, the derivative of e^x² is e^x² times 2x. That is where the xlnx comes from, because it is the exponent of the function. Then he just uses the product rule on xlnx to get the solution.
samedi 21 mars 2009 20:48:07
AdminOnDuty

I think its a 10 :)
jeudi 12 mars 2009 01:34:33
AdminOnDuty

I'm not sure I understand how that d/dx · e ^ xlnx = e ^ xlnx · d/dx · xlnx It looks like you added an extra xlnx there at the end o.O
jeudi 12 mars 2009 01:25:18
wirechair

great
jeudi 08 janvier 2009 22:49:31
FlamingPope

now take the integral of x ^ x, showing work
vendredi 21 novembre 2008 10:45:12
sunnz

Nice.
vendredi 07 novembre 2008 08:14:50
asmhaxor

Sexy.
mardi 04 novembre 2008 15:34:49
vt1875

nice
lundi 07 juillet 2008 07:40:50
xxxxxxxDreamxxxxxxx

wow what the FUCK was that all about? jesus I feel so stupid I didn't understand one bit of that
dimanche 08 juin 2008 05:09:46
vorojtsov

What is it? An audit of my videos? :)
mardi 03 juin 2008 10:53:29
1234adiit

Please also mention x is not equal to 0.
mardi 03 juin 2008 10:13:54
Oxydox

Thanks, that was interesting vorojstov! It would be great if you could do some more math videos too.
jeudi 01 mai 2008 09:35:49