Search results

Just remember though, that sometimes you have to use a combination of product rule and function of a function rule. For example y = 3x(x+3)3 Sometimes people presume that the derivative is: y' = 3x(3)(x+3)2 * 1 This is incorrect. The correct way to do it is: y' = u'v + uv' where...

The adivce line seems do be down atm can anyone else seem to get through? The time right now is 4:51 p.m.

Yeah, just dont abbreviate too much, liek dont write v.o.a for vertically opposite angles..

Actually, if u do 4 unit u can integrate it using integration by parts, the primitive function is just xlnx - x y = xlnx - x y' = (1)(lnx) + (x)(1/x) -1 = ln x Also the graph 2 posts above is the graph of y = ln x , not y = ln e y = ln e is equal to 1 :p

The Board Of studies clearly states that you can use 3 unit maths (i.e. calculus) to solve these problems. Mr Hong Kong found out by asking them directly - problem solved :) http://community.boredofstudies.org/showthread.php?t=84365

Umm, I thought aligning and scalign were two separate processed. Hence even if a subject may have poor scaling, it might still be extremely difficult and so the raw mark for a band six may be low

yes there is, it involves using the t formulae where t = tan (x/2) Some ppl swear by the t method and will never use the transformation RCos, RSin etc. unless explicitly stated

the whole point of the transformation into RCos is so that you can solve your question and hence graph it :p so anyway it becomes root 2 = root 2 cos (x +45) 1 = cos(x+45) x + 45 = 0, 360 x = 360 - 45 = 315

for 1 dont forget to state that the earth spins fastest at the equator. hence its advantagous to launch a rocket from a location near the equator.

Yeah, I came across that the other day. I think what the success one book is getting at is that when you have hydrogen ions in the water, the first reaction that you've written is accelerated as per Le Chatlier's principle. This is because, if you take a look at the HSC data sheet, all the...

I found 2004 very easy when compared to 2003. The last question was a sinch compared to questions like in the 2000 paper.

lol, its because they ask for 5 or another number of function values when you've only used three - I would strongly suggest not to use those formuilas that are designed assuming that you have 3 function values or whatever...but you should get the same answer when you apply the formula you used...

Take a look at "How TV'S work" at howstuffworks.com Its got more than enough u need to know about stuff thats not in the textbooks :)

You don't need so much additional information gained from your own knowledge - just stick to the source analysing, you might run out of time otherwise :) Now I haven't done this in a very long time, but it looks pretty good, for the first source I would probably elaborate on why the source is...

I have the MANSW book, i can scan up a particular question if u want

lol ok, yeah ur right...

he refused to participate. he merely signed a letter urging the american president to develop a bomb, purley because the nazis were trying to develop one. im prettu sure he said that the bomb should never be used

no, because all the rules, when applied correctly, should yield the same answer...

lol well there u go whats it meant to be btw?

lol u might have got the old version the new version has it right: poly(ethenyl benzene)