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Everyone thank Brent012 for fixing latex code and various other issues associated with its implementation He responded promptly and worked quickly to fix it SWEET :D (Idk why I'm so pumped about viewing maths on my phone I just am) Sent from my iPhone using Tapatalk

Re: MX2 2016 Integration Marathon https://www.youtube.com/watch?v=oTz93Y-qeq0

Do you happen to have worked solutions to these ? Regardless thankyou so much for taking the time to make these :D

Whoops, messy writing on my part had my 'x' inside the ln()

Also from the same booklet \int^{e}_{1/e}\frac{\arctan(x)dx}{x} I just tried IBP, and used the substitution u=ln(1/x) $ for J$ This gave me I = (\tan^{-1}{x}ln{x})^{e}_{1/e} - J \\ J= \int^{1}_{0}\frac{-udu}{e^u+e^{-u}}

$When evaluating$ \int^{\pi/4}_{0} \frac{ln2}{2}d\theta \\ \\ $How do we evaluate ln0?$

Ah I see Great explanation , Thanks once again :D

How is this possible btw (How can having limits make a qs doable ) So far I've only encountered questions where you pretty much solve the indefinite integral and then sub limits in to find the definite integral lol And for anyone that cares I tried using IBP and got I=I Rip HSC

Thanks for your replies everyone :D I really love this forum because everyone helps out. I post a question and it gets answered so quickly. Hoping one day I'll be able to give back (after learning Uni lvl maths lol) Sent from my iPhone using Tapatalk

:mad: \int\frac{ln(x+2)}{x^2+4} found this on ekmans hard 4U qs compilation P.S if someone has worked solutions to that pdf it would be a huge help :) Edit: Questions are from here http://community.boredofstudies.org/14/mathematics-extension-2/345375/ekmans-compilation-mx2-questions.html

I'm getting 95.20 using the matrix atar calculator

Recently got ranks and an atar estimate from academic advisor Want to compare it with estimates given on bos Assuming this information is correct, Im: Bottom band 6 for Chemistry/Extension 1 maths (90 HSC barely) Bottom band 5 for English (80 HSC barely) Mid Band 5 for Extension 2 maths...

Oh yea LOL Thank you integrand :D

Where did I go so wrong ? Also yea forgot the +C Sent from my iPhone using Tapatalk

On Iphone 4S tapatalk Can only see a greyed out image (broken image) Mods pls fix ty

Yea my academic advisor will be given my ranks, he/she will map it to previous years HSC mark I will be given a minimum of 80 for all subjects, 90 for phys/chem Unless scaling changes drastically or my school rank plummets randomly, or I fk up externals, any other reason why I wouldn't get the...

Alright, so for all my subjects, almost everyone gets a band 5 or an e3 at my school Im not in that bottom x% that dont get above B5 , E3 I AM in the range for a B6 in phys/chem Assuming ranks stay the same, and my externals correspond to my internal ranks (correspond to previous years rank vs...

Sorry for Ext1/2 maths i meant e4 My school does. I can actually get an atar estimate from school for each year and average it with like the past 10 years So assuming my school discloses, can i just do what I mentioned "So I can simply go to my academic advisor, say Hey, how many people get...

So I can simply go to my academic advisor and say: Hey, how many people get a band 5 in 4u/3u maths and english How many people get a band 6 in phys/chem and then If i achieve those ranks a high 94 will be a solid estimate?

Thanks (was being sarcastic about the 4U scaling lmao) Also, how exactly do you use information about the number of band 6's per subject to estimate atar Does a 90 HSC mark mean a band 6? 80 HSC mark band 5? etc.