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1/0 is undefined, so you need to restrict the function.

yep

chin up son, you've got this ;)

U have a chance at 100 sy, but not a chance at a state rank sorry

do you have any suggestions for tough 3u papers?

oh and deswa, look at 16 c) ii) possibly the easiest 2 marks in the whole paper (srs) and iii) is exactly the same!!

Ive proved all the way up to there so far, except a) lol, and its not too bad. There is a bit of reasoning im not sure about, but otherwise good. but for that one, look at the far RHS of the inequality, and then consider if a0/a1 was the minimum. sub it in and u get a1(a0/a1) = < a0 which is...

Loving 16 c) i) now that I have time to fully comprehend it. Inductive reasoning :)

Oh whoops, I was considering Bk and Bk-1 as individual terms, but the x is to the same power so its the one term. sweet thanks :)

@ trebla. Im slowly working my way through Q16. Im doing 16 b) i) 1). I shuffled the sigma to get it in the form of the inequality, and then applied the absolute value signs, but I am just wondering, why is, -\sum_{k=1}^{n}(b_{k-1}-b_{k})|x|^{k}\\\\ should~it~not~be\\\\...

Here is a start. 11 a) <a href="http://www.codecogs.com/eqnedit.php?latex=\int_{0}^{1}\frac{e^{2x}-1}{e^{2x}@plus;1}dx\\\\ \int_{0}^{1}(\frac{e^x}{e^x})\frac{e^{2x}-1}{e^{2x}@plus;1}dx\\\\\\ let~u=e^x,~du=e^xdx\\\\ x=0,~u=1\\ x=1,~u=e\\\\" target="_blank"><img...

whatcha get?

ok I will latex up some of the easier solutions and hopefully others can do some other ones. :)

65

99

97~

lol just went back through solution and its wrong haha shit. I got to the point where I had to prove that l/cos(theta) = -1. but I dunno how seeing as l/cos(theta) is positive. the question may be wrong.

yeh, hint or sol?

No, I am saying you will be in the 80's atar at least :) but I am saying that your raw marks in subjects will not be 80's most probably. If you want to have a look at what i mean, download the attachment from http://community.boredofstudies.org/showthread.php?t=269611

ok, im going to be brutally honest here, and don't take this personally at all, but your careers advisor has no idea. If you get 80% for each subject, that would be a band 6 in every single subject you do except for english and maybe not IPT. I am just trying to get you to be realistic here...