Derivative of log with arbitrary base

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this made my life make sense ...for now *feeling peaceful*

sarahfarag
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important: when x is not just a single variable (for example: (x - 3) or 3x^2 ), don't forget that the derivative of lnx is this: (the derivative of x)/(x).

emilye
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thank you sir, helps a lot at last moments

A_man_
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Thank you! i searched for quite some time to find a good explanation that wasn't streched out over several questions and answers in a forum. I can rest now.

eressos
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my life makes sense now having watched this video

emilye
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Thank you Mr Khan you are an absolute SAVIOUR!

tallulabellm
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Best channel of mathmatics on you tube

MajidAli-pcdp
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I hate text book explanations, therefore I hate khan academy. Also that's why I love organic chemistry tutor, he explains everything in a way we poor students can understand. He's even better than some professors in my college smh.

Gametuts
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What happens when there is a number before the log? does it do anything?

jesseraine
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What if b is also varible fuction in x

devplays
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so helpfull for x but why doesn't work for log (cos x)

leaaba
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What would be the derivative of f(x)=xlog_(10)x-1.2

zahoorahmedghoto
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i have no clue what's going on, but i'm watching anyways lol

ISHYGDDT
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I dont understand the purple step (2:15)

malino-souls
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This video didn't give good examples. Surprised.

Syvmana