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Mathematics Problem (1 Viewer)

jaychouf4n

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Simplify then diffrentiate e^log x

ok so i'm not sure what they mean by simplify

i get e^log x/x by chain rule

the answer in the back is 1

Can you please explain the reasoning for me :)

Here log is ln because it is cambridge
 

jaychouf4n

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nm

I was just being an idiot forgetting Ch12 :(

They're inverses

stupid me :(
 

lyounamu

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jaychouf4n said:
Simplify then diffrentiate e^log x

ok so i'm not sure what they mean by simplify

i get e^log x/x by chain rule

the answer in the back is 1

Can you please explain the reasoning for me :)

Here log is ln because it is cambridge
d/dx(e^log(x)) = d/dx(x) = 1
 

Aerath

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Man...Yr 10 and doing that stuff already... =\
 

x.Exhaust.x

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Wow Year 10'er differentiating and doing logarithms... :eek: Probably an accelerant.
 

Aplus

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I did log in Year 9 and 10. I've forgotten it though. How pointless that was on my part...
 

x.Exhaust.x

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Aplus said:
I did log in Year 9 and 10. I've forgotten it though. How pointless that was on my part...
I also did it last year in my Year 10 Advanced 5.3 class. Still remember some of it :D.
 

jaychouf4n

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Lol I'm not that good

I'm Year 11

I just went to school 1 yr earlier

31/05/92 ^^
 

x.Exhaust.x

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jaychouf4n said:
Lol I'm not that good

I'm Year 11

I just went to school 1 yr earlier

31/05/92 ^^
So you'll be sitting the HSC in 2009? If so, change your date, to avoid confusion.
 

Aerath

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foram said:
no 31/05/92 comes BEFORE 22/06/92

Therefore, you're older. :D
Yeah, you're younger. It shows. ;)

Aplus said:
I did log in Year 9 and 10. I've forgotten it though. How pointless that was on my part...
Hmmm, I think logs and calculus of logs are two different things. If I remember correctly, in Fitzpatrick, manipulation of log is like...Chapter 6/7, whereas calculus of expo/log is in like Chapter 15/16/17.
 

Aplus

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Aerath said:
Yeah, you're younger. It shows. ;)


Hmmm, I think logs and calculus of logs are two different things. If I remember correctly, in Fitzpatrick, manipulation of log is like...Chapter 6/7, whereas calculus of expo/log is in like Chapter 15/16/17.
Nevertheless, I hated log lol. Just too lazy to learn the language lol.
 

Aerath

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Haha. I don't really have a problem with logs. It's Max/Min for differentiation, probability, and the first bit of radians that I have an issue with.
 

Doctor Jolly

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Aplus said:
I did log in Year 9 and 10. I've forgotten it though. How pointless that was on my part...
Yeah I've done them in Years 9 and 10 too. Both at tutoring and at school, and I've forgotten all the laws and everything. The only thing I remember doing is pulling down the power p to make it plog :D
 

Aerath

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Doctor Jolly said:
Yeah I've done them in Years 9 and 10 too. Both at tutoring and at school, and I've forgotten all the laws and everything. The only thing I remember doing is pulling down the power p to make it plog :D
Haha, I found logs very easy to forget, too. :(
 

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