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# C2 logs Tweet

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1. C2 logs
It is given that x=p +2 and y=3p (logx=log(base e)x)
Express log (y/e) in terms of p
2. Re: C2 logs
(Original post by hannah1994)
It is given that x=p +2 and y=3p (logx=log(base e)x)
Express log (y/e) in terms of p
by the way log base e is just written as ln

Can you use log laws to separate ln(y/e).
3. Re: C2 logs
(Original post by hassi94)
by the way log base e is just written as ln

Can you use log laws to separate ln(y/e).
Why is it just wrote ln? I've come across this base e again, I don't understand it!

And logy - loge
4. Re: C2 logs
is known as the natural log of it can also be written as
5. Re: C2 logs
(Original post by hannah1994)
Why is it just wrote ln? I've come across this base e again, I don't understand it!

And logy - loge
Natural Logarithm, but Euler (who discovered e) was swiss so it was 'Logarithme Naturel' i.e. ln

That's how it's almost always written (should really be like that in your book too)

okay that's right, and what's ln(e)?
6. Re: C2 logs
(Original post by hannah1994)
It is given that x=p +2 and y=3p (logx=log(base e)x)
Express log (y/e) in terms of p
Can you write the question more clearly ?
7. Re: C2 logs
(Original post by hassi94)
Natural Logarithm, but Euler (who discovered e) was swiss so it was 'Logarithme Naturel' i.e. ln

That's how it's almost always written (should really be like that in your book too)

okay that's right, and what's ln(e)?
hmm okay aha
and I'm not sure :/
8. Re: C2 logs
(Original post by hannah1994)
hmm okay aha
and I'm not sure :/
log base e of e = 1
9. Re: C2 logs
(Original post by hannah1994)
hmm okay aha
and I'm not sure :/
Well you should know that for any number a is equal to 1. If not I suggest looking through the chapter again because you need to make sure you're familiar with the basics of logs
10. Re: C2 logs
(Original post by hassi94)
Well you should know that for any number a is equal to 1. If not I suggest looking through the chapter again because you need to make sure you're familiar with the basics of logs
i have my c2 exam tomorrow
11. Re: C2 logs
(Original post by dongonaeatu)
i have my c2 exam tomorrow
Erm, okay? How're you feeling for it then?
12. Re: C2 logs
(Original post by hassi94)
Erm, okay? How're you feeling for it then?
i got 31% in my mock a few weeks ago. I think it depends what paper i got. I got a C in c1 so hopefully i can match that in this.
13. Re: C2 logs
(Original post by dongonaeatu)
i got 31% in my mock a few weeks ago. I think it depends what paper i got. I got a C in c1 so hopefully i can match that in this.
That was a few weeks ago though, and you've been doing a lot since then so hopefully you can do better than that. Do a past paper today and feedback to the forum via a thread or you can PM me
14. Re: C2 logs
(Original post by hassi94)
That was a few weeks ago though, and you've been doing a lot since then so hopefully you can do better than that. Do a past paper today and feedback to the forum via a thread or you can PM me
thank you i am doing past paper now
15. Re: C2 logs
(Original post by dongonaeatu)
i got 31% in my mock a few weeks ago. I think it depends what paper i got. I got a C in c1 so hopefully i can match that in this.
Which board are you on?

Good luck with C2
16. Re: C2 logs
(Original post by raheem94)
Which board are you on?

Good luck with C2
ocr mei

thank you

my m8 is coming round at 2 to tutor me for 2 hours and he got a 90% in c2
17. Re: C2 logs
(Original post by dongonaeatu)
ocr mei

thank you

my m8 is coming round at 2 to tutor me for 2 hours and he got a 90% in c2
I just finished my physics unit 1 exam today, it was a resit, my first resit at A-Level.

I have S1 tomorrow, lets see how it goes.

Though i haven't started revising yet, i will probably not be able to help you much today.

Why didn't you resit C1?
18. Re: C2 logs
(Original post by raheem94)
I just finished my physics unit 1 exam today, it was a resit, my first resit at A-Level.

I have S1 tomorrow, lets see how it goes.

Though i haven't started revising yet, i will probably not be able to help you much today.

Why didn't you resit C1?
how did your physics exam go?

what do you mean you haven't started revising for s1

its ok you have helped me a lot in past thank you

my teacher thought i got a good grade i probs should have retook oh well
19. Re: C2 logs
(Original post by dongonaeatu)
how did your physics exam go?

what do you mean you haven't started revising for s1

its ok you have helped me a lot in past thank you

my teacher thought i got a good grade i probs should have retook oh well
I can't discuss physics exam today, it is edexcel physics, an international exam. Though at most i can say it went well

I mean from the time i prepared S1, i haven't worked on it again. I need to revise the book, then will try to do a couple of past papers, i haven't done any yet.
20. Re: C2 logs
(Original post by raheem94)
I can't discuss physics exam today, it is edexcel physics, an international exam. Though at most i can say it went well

I mean from the time i prepared S1, i haven't worked on it again. I need to revise the book, then will try to do a couple of past papers, i haven't done any yet.
good luck raheem and well done im sure you do great