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Math nerds unite! *DELETED*
    #9173917 -

Post deleted by SubGen1us

Reason for deletion: .


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Re: Math nerds unite! [Re: SubGen1us]
    #9173948 -

why quotient rule? you need the product (or is it the chain rule? I'm shit at names) rule:

dy/dx = dy/du du/dx

y = exln(x)


dy/dx = exln(x) + (ex)/x

Differential of ex is just ex and you don't differentiate the ln(x), then you leave the ex alone and differentiate the ln(x); 1/x.

Disclaimer: Its late and I'm pretty special, so I could be wrong.


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"I only ever hope to reach equilibrium, in Nature's matrix, in line with the meridian" ~ Jehst

:sun: "...and I know that I have to keep breathing, as tomorrow the sun will rise, who knows what the tide will bring?" :sun:

Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution :grin:

Open Source. Freedom.  GNU/Linux

Addicting is not a word.

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Re: Math nerds unite! [Re: Cepheus]
    #9173955 -

Formula: 0


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Re: Math nerds unite! [Re: Coaster]
    #9173961 -

which is the simplified version of what I said... yay :grin:.


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"I only ever hope to reach equilibrium, in Nature's matrix, in line with the meridian" ~ Jehst

:sun: "...and I know that I have to keep breathing, as tomorrow the sun will rise, who knows what the tide will bring?" :sun:

Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution :grin:

Open Source. Freedom.  GNU/Linux

Addicting is not a word.

Extras: Filter Print Post Top
Re: Math nerds unite! *DELETED* [Re: Cepheus]
    #9173962 -

Post deleted by SubGen1us

Reason for deletion: .


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Re: Math nerds unite! [Re: SubGen1us]
    #9173966 -

ya we no


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Re: Math nerds unite! [Re: SubGen1us]
    #9173998 -

Calc I?

i'm in Calc III right now.

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Re: Math nerds unite! [Re: TameMe]
    #9174010 -

im in dynamics of geometry and choas


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Re: Math nerds unite! *DELETED* [Re: TameMe]
    #9174013 -

Post deleted by SubGen1us

Reason for deletion: .


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Re: Math nerds unite! [Re: SubGen1us]
    #9174025 -

I'm in 'maths for physicists' :awesome:.


--------------------
"I only ever hope to reach equilibrium, in Nature's matrix, in line with the meridian" ~ Jehst

:sun: "...and I know that I have to keep breathing, as tomorrow the sun will rise, who knows what the tide will bring?" :sun:

Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution :grin:

Open Source. Freedom.  GNU/Linux

Addicting is not a word.

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Re: Math nerds unite! [Re: SubGen1us]
    #9174062 -

is it the same prob you originally posted with?

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Re: Math nerds unite! *DELETED* [Re: TameMe]
    #9174089 -

Post deleted by SubGen1us

Reason for deletion: .


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Re: Math nerds unite! [Re: Cepheus]
    #9174113 -

Cepheus said:
why quotient rule? you need the product (or is it the chain rule? I'm shit at names) rule:

dy/dx = dy/du du/dx

y = exln(x)


dy/dx = exln(x) + (ex)/x

Differential of ex is just ex and you don't differentiate the ln(x), then you leave the ex alone and differentiate the ln(x); 1/x.

Disclaimer: Its late and I'm pretty special, so I could be wrong.


You stated the chain rule but used the product rule.

The product rule is

Formula: 0.

Apart from that, you are right.


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Formula: 0

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Re: Math nerds unite! [Re: SubGen1us]
    #9174120 -

and it's asking for the derivative?

because it should be

(e^x)lnx + (e^x)/x

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Re: Math nerds unite! *DELETED* [Re: TameMe]
    #9174140 -

Post deleted by SubGen1us

Reason for deletion: .


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Re: Math nerds unite! [Re: SubGen1us]
    #9174156 -

could be. go ask her before class.

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Re: Math nerds unite! *DELETED* [Re: SubGen1us]
    #9174180 -

Post deleted by SubGen1us

Reason for deletion: .


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Edited by SubGen1us (11/02/08 07:41 PM)

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Re: Math nerds unite! [Re: SubGen1us]
    #9174191 -

SubGen1us said:
Holy shit!

This next stuff I dont even rememeber learning in class....

Maybe someone could explain.

I'm not really asking for an answer on this next part but an explaination on how to do it.

I'm given 2=.6931 and ln 5 = 1.6094

and I'm supposed to find ln(5/16)

I have no idea even where to start...


Come on... you were asking about logarithm rules just a little while back!

ln(5/16) = ln 5 - ln 16 = ln 5 - ln 2^4 = ln 5 - 4(ln 2) =...


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Formula: 0

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Re: Math nerds unite! [Re: Cepheus]
    #9174197 -

Cepheus said:
I'm in 'maths for physicists' :awesome:.


Im not in any math class, and probably never will be again.  :awesome:

What do you do in that class?  Special functions?  I took two semesters of 'Mathematical methods for physicists'.  Very hard class. 

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Re: Math nerds unite! [Re: isaacein]
    #9174202 -

i love ur avy wut is it of


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