Help please (1 Viewer)

[stormz89]

aww man you have to use function of a function rule given that log f(x) = f'(x)/f(x)

 

[hoochiscrazy]

aww man you have to use function of a function rule given that log f(x) = f'(x)/f(x)

lol shit yeah i remember now!

edit: done it now lol thx for the reminder!

 

[stormz89]

lol shit yeah i remember now!

I can do it, its just so long and I've never seen it in any past hsc paper.

 

[michelle.leung2]

k i got another for you guys now lol

find dy/dx given that y=ln(2x+1/3x-7)

well known as one of the log laws is ln(a)-ln(b) = ln(a/b)

so you can seperate them, this will give you...

y=ln(2x+1)-ln(3x-7)... get it?
so .

dy/dx=2/(2x+1)-3/(3x-7)

and yeh you simplify that onwards.

just reply if u need more help

 

[stormz89]

well known as one of the log laws is ln(a)-ln(b) = ln(a/b)

so you can seperate them, this will give you...

y=ln(2x+1)-ln(3x-7)... get it?
so .

dy/dx=2/(2x+1)-3/(3x-7)

and yeh you simplify that onwards.

just reply if u need more help

your awsome.

and you get

2(3x-7)-3(2x+1) which you can expand I think

 

[michelle.leung2]

I can do it, its just so long and I've never seen it in any past hsc paper.

then you probs be sure it might be in this years lol

hmmm im still getting there on the question 10 (b)s
do you reckon its going to be a hard paper this year?

 

[stormz89]

then you probs be sure it might be in this years lol

hmmm im still getting there on the question 10 (b)s
do you reckon its going to be a hard paper this year?

yes its going to be hard. Like usual.

I plan to just give it a shot and probably give up. Does reading the success one question 10bs work as practise? I might start reading them if it does.

 

[michelle.leung2]

your awsome.

and you get

2(3x-7)-3(2x+1) which you can expand I think

yehh up the top, and the denominator is (2x+1)(3x-7)
then you expand and you should get an answer of...

-17/ (2x+1)(3x-7)

 

[michelle.leung2]

yes its going to be hard. Like usual.

I plan to just give it a shot and probably give up. Does reading the success one question 10bs work as practise? I might start reading them if it does.

hahaha. i hope not ayy.

the papers arent too bad, just wen we get up to like 10, then i start freaking out, some years i can do but others i cant lol.

dont read.. DO! hahaha.

yeh they give you the model version of the HSC type questions so yeh maybe ayy.

 

[stormz89]

hahaha. i hope not ayy.

the papers arent too bad, just wen we get up to like 10, then i start freaking out, some years i can do but others i cant lol.

dont read.. DO! hahaha.

yeh they give you the model version of the HSC type questions so yeh maybe ayy.

fuck your smarter then me. I can only do up to question 6 and not very well. I'll try to do 2004 whole paper with the help of success one but even then I'm still not smart enough.

 

[michelle.leung2]

fuck your smarter then me. I can only do up to question 6 and not very well. I'll try to do 2004 whole paper with the help of success one but even then I'm still not smart enough.

hahaha maths is giving me a headache lol

good luck tomozz ayy.

just try your best

 

[stormz89]

hahaha maths is giving me a headache lol

good luck tomozz ayy.

just try your best

yeah you too, aslong as I don't get a band 1 I'm happy.