Perms and combs is the hardest shit ever!! HELP (1 Viewer)

[jamesfirst]

Circle geo is easy... and you need to know those rules so practice helps.


I have youtubed Perms and Combs and I'm starting to get the hang of it. But the HSC questions are still fucking hard and it's not the english that's the problem. I just can't fucking see it.

 

[jamesfirst]

lol there aren't any formulas

it's just logical thinking that's required

There is...

nPr = n!/(n-r)!
nCr = n!/r!(n-r)!

 

[someth1ng]

Everyone has their weakness in MX1. For me, it's projectile where it's asking to prove an equation. I find P&C to be rather easy however some questions can be set to be ridiculously hard. I find the HSC for P&C to be quite easy but the "Challenge" questions in Cambridge are nuts.

 

[cheezcake]

Perms and Coms is the best, all logic no annoying formulae
I suck at circle geo though

 

[ohexploitable]

There is...

nPr = n!/(n-r)!
nCr = n!/r!(n-r)!

lol no they're not formulas, that's like saying cisx=cosx+isinx is a formula

 

[Omnipotence]

To this point in time - I find Comb&Perms the hardest topic in 3U.

 

[KingDakai]

lol no they're not formulas, that's like saying cisx=cosx+isinx is a formula

+1

 

[UnrealAnchovies]

Didnt matty g once say he can do any topic in 2u/3u par perms and combs, so...

aside from that, i find these relatively straight forward in 3u (most of the time).

 

[ass hole]

Didnt matty g once say he can do any topic in 2u/3u par perms and combs, so...

Yeh, I have kind of forgot them. Partly because I have no need for really knowing how to do them (Haven't come across a subject at uni that requires it) and also because I never got any people to tutor so I have had no need to remember how to do them.

I do a statistics course in a year from now, I will probably relearn it then. Also, I am thinking bout do actuary for my commerce major (might as well put my maths genius to good use , get some high marks , boost my WAM, show you asians how easy maths is ).

 

[The Derivative]

Matty G fan 4lyf <3

 

[imZerroo]

agreed... sometimes the questions are so ambiguous.
but yeh i shy away from them a lot, i might do what spiralfex suggested, if i can be bothered that is..

 

[4025808]

the one I sucked at is perms and combs. I found circle geo to be the easiest 3U topic imo, coz it was more visual, whereas perms and combs was more ambiguous and WTF. But yeah, tbh it's practice that can get you to be able to answer at least 50% of the HSC questions (3U is almost all rote learn except Q7)