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1) Show that a rectangle with fixed perimeter has its shortest diagonal when it is a square. 2) Show that a closed cylindrical can of fixed volume will have minimum surface area when its height is equal to its length to its diameter. How do you do those questions? Thanks

Oi who's playing in this T20 btw?

Uhh I don't completely remember but it would be safe to buy adult tickets. How much more expensive is it? Come on man, no ghettoness at cricket. I think they do check bro, sorry.

How do you do this question? Thanks

If we're talking about cars then Audi braaah. Otherwise poison by dior.

Oh my god noooo only use Cambridge. Both those tb aren't good. They help you understand basic stuff and that's all but in cambridge a quarter of its exercise is on basic maths in focus stuff so you can drill it into your head and then it moves on to harder stuff which is really good. Try to do...

Aww hahaha I'll rep you guys minimum 5 times. Not much else I can do really. But you know the logic, if you do good deeds you'll always get that plus extra in life. :)

bump

Is anyone interested in grabbing different past exams and picking out the relevant topics (which I can tell you) to compile an exam with solutions? It's just that I have to search through every past paper to find topics which I've done, which are like 1 question and then I can't do past...

How do I find the expression for this? Thanks

Are you sure because I heard that class assessment marks don't count because different schools set different difficulties..?

aww hahaha dw I'm proud of you :) Congrats!!

holy shit! I just looked up "absessed" it came up with abscess, ewwwwwww. In answer to your question: umm as long as he doesn't keep asking me to go...he can go himself lol. PS Is that a description of you?

I'm confused on what they use as internal marks for hsc. It's definitely not the class tests, so is it the trial exam? Is that the internal mark? And then external is just HSC? Thanks ;)

Yeah business notes are so unmotivating...I still haven't done ops but it 's good to go into some more depth to make yourself stand out since it's a fairly easy subject. Read business news and definitely know businesses like Apple, Qantas, Billabong well. Good luck and it's still not too late :)

Wow beautiful ranks, congratulations!! :)

ROSA's very easy, compared to HSC.

New books, coffee, chewing gum, soap, mangoes, strawberries, coriander, rosemary, fresh bread ;)

If it's all good and memorised then 1400 until the very end of time limit, otherwise like 1100 or something.