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hey guys, having trouble with this one: y=x + 4/(x-1) i have found 1st and 2nd derivatives. Minimum turing point at (1/2, 15/4) and there are no points of inflexion. there is an asympote at x=1...right. This line is more than just that though isn't it? how can u tell that you got...

Hey everyone, just wondering if there is any way that price elasticity of demand and supply can be measured in the sharemarket? thanks for your help

" the height "h" meters of a cricket ball after being struck by a batsman is given by the equation h=1+x-(x^2/40) where x meters is the horisontal distance traveled by the ball from the bat. how far would the ball travel before it hits the ground?" I have: using pythagoras...

Hi, i'm stuck with this question, I'm prob missing something easy. the "c" above middle c on the piano has a frequency of 512 Hz. calculate the wavelength. Thanks for your help

hi, i was wondering why the sine function makes a squiggly line on the number plane. i know its not the right terminology so sorry for that. thanks

is that it? i did y^2-x^2=36 (x-y)(x+y)=36 (x-y)(8)=36 x-y=36/8 is any of that correct?

Hi, i just sat my maths exam, and i had a very strange question... i don't know how to do it... x+y=8 x^2-y^2=36 find the values for x and y Thanks

yer, but how can u prove that they triangles are similar?

I'm having trouble doing this... prove triangle PQS is similar to triangle QRS Hence prove QS^2=PS.SR the diagram is attached cheers

your not supposed to have a square root on the bottom are you?

fermat is correct the plusminus 2 belongs to the root 2

hmmm, maybe the answer is wrong... it says {2(9x^2+4)}/(3x-2)(3x+2)

is that with a plus in between the fractions?

nice...it does...how about it with a plus instead of a multiply between the two factions

how did u get there?

ummm nar... this is what i can get to... {(3x+3)(2x-2)/(2x+3)(3x+2)} + {(3x+2)(x-2)/(3x-2)(x-2)} and the answer is... {2(9x^2+4)}/(3x-2)(3x+2) i just don't know how to get there haha

how do rationalise this? {(plusminus)2(sqrt)2/(sqrt)3} ALL MINUS 2

yer, but what is left is nasty haha and its wrong

hey, I am having trouble with the following... (6x^2+5x-6)/(6x^2+13x+6) TIMES (3x^2-4x-4)/(3x^2-8x+4) i can factorise them but i don't know what to do after that... Thanks for your help

arrrrrrgggghhhhhh how about x^2-6x-9

its -6 and 2 isn't it? gosh I'm a fool sometimes :rofl:

sorry this is such a stupid question...but i have been sitting her for half an hour trying to solve it. what does a^2-4a-12 factorise to?

yer....got that

.....1?

sorry, i just wrote it down, agree-got it

yer, kinda...

arildno, yes, got it now. Whats next?

SEND=s*1000+e*100+n*10+d*1 i would have thougt it would have been s*1000+e*100+n*10+d

sorry, lost

Letters to Numbers? Hey, I have no idea how to do this... Replace all the letters with the respective digits in such a way that the calculation is correct SEND+MORE=MONEY the answer is 9567+1085=10652, but i don't know how to get there. Thanks for your help

Hey everone... I'm in year 10 and my problem solving skills have been perished in the time that i haven't been doing much of it. Can you guys recommend any books to things that i could do to get my skills back but to par? Thanks for your time

g'day everyone... i was wondering the significance of Mr Gann's square of nine, and how he could just find this "magical" thing and then apply it to the markets... Also, what is the mathematics behind it? I've looked it up on google but it doesn't have anything about either of these...

I'm in year 10 at the moment, but i was wondering where the best place to start was if i wanted to do some extra work on functions and other maths... Thanks

he says stuff like, "with this mathematics, things that we never though possible to predict now can be. e.g. cloud formations" also, he is trying to predict "sentiment" in a way. "all the current methods of prediction do the same thing, try to predict what one person is going to do, but...

is there any way to produce a numberplane using LaTeX? or anythin simialir?

got it :approve: thanks for that...

wow...i'm totally lost...sorry, could u explain that?...thanks... :bugeye: :confused:

cool, cheers...

i saw it under "lim" and it was pointing to infinity...what does it mean there?

sorry, this might seem like a stupid question for all you, but I'm only in year 10. When you this symbol \rightarrow in the middle of an equation, what does it mean? Thanks

ok, so i imput the past into the magical black box formulae to predict the future? would anything else be needed? like probability ect...?

hmm well excuse my language but this actually is a correct term for traders. a "big swinging dick" is a person who is famous for their trading, and are so closley watched, every thing they do is copied and therefore has an effect on the market. the main forces on the market are supply and...

in the movie "the bank" a mathematical genius predicts the exact movements of the sharemarket after years of research and attempts. he uses Fractal geometry, chaos theory, non-linear dynamics and of special interest to him was the work of mandelbrot and his work regarding fractals. He...

so.. so matter was just, made after "phlanks minute" (sorry about spelling)? Can Photons turn into matter?

our universe? could our universe be in a black hole? Could the "Big Bang" have occurred from the possible "singularity" inside a black hole. Also, i know that light can't get out, but can light get in?

I was reading some stuff about the big bang and about the singularity. When the big bang happens, is a whole lot of matter just created? And, Are Photons counted as matter? Thanks

If black holes suck all matter into a singularity, where does it go and what does it do from there?

time http://en.wikipedia.org/wiki/Planck_epoch

hmm haha yer Um...where can i find out more about this?

Is it possible to predict the Markets using Chaos Theory? (or predict anything) If you have seen the aussie movie "the bank" you willl know that's what he does Thanks