ah cheers, I had it right. 1/2 * (ln(17) - ln(5)) = 0.61 units^2
I went one step further and made it 1/2 *(ln(12)) ' which is indeed very very wrong. thanks.
Find the area bounded by the curve y=x/ (x^2 + 1), the x-axis and the lines x = 2 and x = 4. 2 dec place.
what I ended up with is 1/2(ln(17) - ln(5))
which is wrong
17 the &^uk? thats nearly two HSC ATARs :/ lol i wonder if its possible to do 10 units accelerated 1 year then 10 more the next yr and get 2 atars, that would screw up the system and you as well :P
it just means to program by using separate modules for different functions / tasks. So in VB for example: you can write a sub. e.g
sub Startmovement1
Timer1.enabled = True
End sub
now this sub can be used anywhere within the program etc, and it will still perform the same function, i.e...
okay think I got it now. yes I did get (pi - 2) units^2
so for the quarter of a circle, you don't use integration as it won't give you the exact answer of pi. (requires the user to look at a different angle when solving this question)