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Case ([personal profile] case) wrote in [community profile] fandomsecrets2013-05-07 06:43 pm
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[ SECRET POST #2317 ]


⌈ Secret Post #2317 ⌋

Warning: Some secrets are NOT worksafe and may contain SPOILERS.

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Notes:

Secrets Left to Post: 02 pages, 048 secrets from Secret Submission Post #331.
Secrets Not Posted: [ 0 - broken links ], [ 1 - not!secrets ], [ 0 - not!fandom ], [ 0 - too big ], [ 0 - repeat ].
Current Secret Submissions Post: here.
Suggestions, comments, and concerns should go here.
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Re: I need help

(Anonymous) 2013-05-07 11:35 pm (UTC)(link)
Integration by parts and u-substitution are the times you're allowed to treat du/dx the derivative as a fraction. Most of the time, you're not supposed to do that, but in this case you just go ahead and pretend it is. :)

Does that help?

Re: I need help

(Anonymous) 2013-05-07 11:40 pm (UTC)(link)
So there's no reason, it just is? And it's like that?

THAT MAKES SO MUCH MORE SENSE OMG.

I THOUGHT the teachers were just assuming everyone knew why and not understanding when I was asking (I can't words sometimes), but that's just one of the rules of integral calculus?

dreemyweird: (Default)

Re: I need help

[personal profile] dreemyweird 2013-05-07 11:52 pm (UTC)(link)
Not really; it's because they're rates of change. Hence here they behave as parts of a fraction. Say, if u changes twice as fast as x, we can safely assume the relationship above is true.
Edited 2013-05-07 23:54 (UTC)

Re: I need help

(Anonymous) 2013-05-07 11:54 pm (UTC)(link)
Oh. Okay, that makes sense!
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