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whoa omg ok thanks guys!! So to use ln when integrating, when else is it required???

How do you know if you're supposed to use log or In?? I just realised that I actually don't know.. So for integration eg [integral sign] x/x+3 what do you use here? And omg someone please help!!! I feel so confused.. Why are there 2? Log and In? When are they each used?? Helppp :(

How the hell do u sketch this? I know max pt is at zero, minus 1

Ahh sorry yeah it's mean to be down. How do I show this?

It's best to not dwell on past mistakes, but to move forward as Julia Gillard would say. Isn't that bit too much? 3 units of extensions you have. Are you coping? Personally I would drop 3 unit only if you are performing well in 4U english. That requires a lot of time and research and you don't...

Be You Em Pee

In your half yearlies? Ever been asked for more than one? And how rare is it?

For the curve, y=x - e^x How do I show that it is concave up?

e^(x+log x) differentiate this. and how do you do: y=x^x ?

Hey guys I can't do this, please help :(

Cheers mate, I'll do it now

You've gotta be heaps dedicated. Some people can really kick in at the end and then pull off nice marks. Start now and keep revising every day and I assure you that you will see a drastic improvement. You've got arms, legs, and a brain to think. Nothing is impossible. Think of the children in...

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(a) Find the first and second derivatives of y = cosx + √3 sinx. (b) Find the stationary points in the domain 0 ≤ x ≤ 2π and use the second derivative to determine their nature. (c) Find the points of inflexion. (d) Hence sketch the curve for 0 ≤ x ≤ 2π. From b onwards I'm screwing up

Given that the wingspan of an aeroplane is 30 m, find the plane’s altitude to the nearest metre if the wingspan subtends an angle of 14 minutes when it is directly overhead.

But why? It doesn't look good on your school report.

What the heck? Stop quoting everyone. I'n saying that they shouldn't think of increasing fees anyway. Otherwise, it's basically like they're converting education into a product. Btw, are you a brother of Justin Bieber's?

This is terrible. We shouldn't be fiddling with education by applying it to the concept of demand and supply. Education should not only be given to those who can afford it, it should be open to all people. It's not as if rich people will perform the job better than people who may not be able to...

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QUESTION 1 A personal loan for $30 000 is approved with the following conditions. The reducible interest rate is 13·3% per annum, with payments to be made at six-monthly intervals over five years. (a) Find the size of each instalment, correct to the nearest dollar. Answer is $4202 QUESTION 2...