Proofs for Maths Paper 1

peckingduck

Anyone have any predictions on what proofs are coming up on the HL maths paper?

magicianz

+1! anyone have any ideas?

partyatmygaff

Factor theorem and a trig 1st principles i'd say.

magicianz

Maclaurin?

aranciata

partyatmygaff wrote: »

Factor theorem and a trig 1st principles i'd say.

Not even the Quotient rule?
Would be nice marks.

kpac

Factor theorem is a nice one to get, handy out.

partyatmygaff

aranciata wrote: »

Not even the Quotient rule?
Would be nice marks.

Possibly... I hate the the differentiation proofs though. Stupidly long winded unless you use that delta y method that I can't get my head around

aranciata

partyatmygaff wrote: »

Possibly... I hate the the differentiation proofs though. Stupidly long winded unless you use that delta y method that I can't get my head around

Love em but hate both De Movire's theorem ones, our teacher never did induction with us and trying to learn it without it making sense is proving difficult.

What are people predicting the split is gonna be? 1 proof on each paper? 10 mark proof on paper 1 and a 20 on paper 2? 1 trig and 1 geometry proof on paper 2?

kpac

partyatmygaff wrote: »

Possibly... I hate the the differentiation proofs though. Stupidly long winded unless you use that delta y method that I can't get my head around

What method is that?

BrendaN_f

partyatmygaff wrote: »

Possibly... I hate the the differentiation proofs though. Stupidly long winded unless you use that delta y method that I can't get my head around

though maths is far from my strong suit, and easy way for those is to just ln across the equation, and then differentiate as normal

kpac

But don't all those have to be done from first principles? I believe they do...

COOMKEEN3010

Our maths teacher rang somebody in our class two days ago to say that the quotient Rule is predicted to come up.....

partyatmygaff

kpac wrote: »

But don't all those have to be done from first principles? I believe they do...

They do...

The delta method is the exact same as the f(x+h) - f(x) method. It's just different notation that negates the need for special "tricks" to get it to work out.

Prinkle

partyatmygaff wrote: »

They do...

The delta method is the exact same as the f(x+h) - f(x) method. It's just different notation that negates the need for special "tricks" to get it to work out.

You don't happen to know where I could find those online, do you? No worries if you don't, I can have a look myself. I just get mixed up beteen all the f(x+h) - f(x) ones.

hunii07

So what theorems just for paper 1 tomorrow do you think will come up ?

Daniel S

hunii07 wrote: »

So what theorems just for paper 1 tomorrow do you think will come up ?

Know this:

http://planetmath.org/encyclopedia/ProofOfQuotientRule.html

hunii07

mtb_kng wrote: »

Know this:

http://planetmath.org/encyclopedia/ProofOfQuotientRule.html

Thanks

Daniel S

hunii07 wrote: »

Thanks

Just so you know, I'm also learning it off for the first time now

It's basically take the end of first principles, fiddle with it, take away f(x)g(x) and then add it back in. Mess with it again until you get the quotient rule.




If I get a C3 in maths I'd be delighted :pac:

hunii07

mtb_kng wrote: »

Just so you know, I'm also learning it off for the first time now

It's basically take the end of first principles, fiddle with it, take away f(x)g(x) and then add it back in. Mess with it again until you get the quotient rule.




If I get a C3 in maths I'd be delighted :pac:

Thanks for your help... yea I'd be happy with that too .. I'm a repeat and got a D2 last yr but my teacher wasn't great.. better teacher this yr so fingers crossed.. and good luck to you too

Daniel S

hunii07 wrote: »

Thanks for your help... yea I'd be happy with that too .. I'm a repeat and got a D2 last yr but my teacher wasn't great.. better teacher this yr so fingers crossed.. and good luck to you too

What are you doing next year? Mech Engineering in UL hopefully here. I'd rather not have to do the special entrance exam.

hunii07

mtb_kng wrote: »

What are you doing next year? Mech Engineering in UL hopefully here. I'd rather not have to do the special entrance exam.

I want to do primary teaching in St.Pat's, Marino , Froebel...that order ..if I don't get the points hopefully arts in NUIM

Bottleopener

I know it isn't an official proof, but the derivation of the formula for a sphere using integration hasn't come up since 2003. Am keeping that one in mind.

eoins23456

http://www.mathsireland.com/LCHGeneralNotes/Proofs/Proofs.html

has most of the proofs

GV_NRG

mtb_kng wrote: »

What are you doing next year? Mech Engineering in UL hopefully here. I'd rather not have to do the special entrance exam.

im doing boimedical engineerieng in UL hopefully too so weel be in the same classes for 1st year haha.

i dont want to do the special entrance exam either, i got 43 in my mocks, so after that ive been doing a maths paper practically every day, i did another mock paper a few days ago paper 1 and paper 2 and i got an average of 74%, a full 30% increase haha! my guidance counceler told me i definetly have to do the entrance exam haha i showed her!!! :P