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Re: 2012 HSC MX1 Marathon wait i got 6pi^2 when i did it again

Re: 2012 HSC MX1 Marathon Oh shit, sorry timske, mind my sleepiness, I put a 2pi infront of my integral not a 24pi and hence got pi^2/2

Re: 2012 HSC MX1 Marathon naa its pi^2/2

Spiral, I dont really understand your common factors argument. Even if p and q had common factors they would cancel and leave still a rational number wouldnt they?

Mainly the dropouts who pick it.

^ LOL, fucking sad bro. I dont think my school have one either, I dont know to be honest.

^ lol, last year no one in my year got a band 6 in geograph. Big FUCK YOU! to the geo faculty.

^ LOL.

Guys how would you sketch graphs like y=ln(x)/x^2 and y=e^x/x? Having trouble with them. Thanks.

Re: 2012 HSC MX1 Marathon I first found the points of intersection between the parabola and the line clearly the first one being O(0,0) and the second being (4(1-k),f(4(1-k))) where f(x)=x-(1/4)x^2. After this I found the area bounded by the line and curve in terms of k and set this equal to...

Re: 2012 HSC MX1 Marathon k=1-cuberoot(0.5)?

Can someone help?

Sorry. Hopefully I dont have the same fate.

Question from mathsonline: The letters EEEBBBB are arranged in a row. How many different arrangements are there? How many different arrangements are there of just 6 of the letters are possible?

I guess...

In these probabiltiy questions I get confused wif when to use factorials, perms, combs. Is it possible do them them all with use of factorials only?

Its so frustrating I was trying to get this question: In how many ways can 4 consonauts and 3 vowels be arranged in a row if (b) so that the first and the last places are occupied by consonauts? and apparently the answer is 3!*4!*5C3. How?!!!!!!!!!!!!!!!!

for chem, we havent gotten a textbook yet.

i wish they introduced differential equations into the course.

changed standard english to advanced, bout it so far...