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I'm in another sticky situation with: Int. sin4x dx Do I sub in sin2x = (1-cos2x)/2 ?

ah thank you kind sirs.

Alright guys, I'm in need of a little help with this one: Integration of: sin3(2x)dx Here's what I've done: (the above integration) = Int. sin2(2x).sin(2x)dx = Int. sin2x(1-cos2(2x)) = Int. sin2x - sin2x.cos22x I've not a clue where to proceed from there. (p.s. how do you do the...

If you don't mind, I'm gonna stick a picture of you up on my wall underneath "motivation".

I've got a problem with my DS not recognising my R4. I have to continually remove the microsd, put it back in, then put the cart into the DS (even then it doesn't boot to the R4 screen many times). If I'm lucky it does (and if I don't touch it/eject it) it works perfectly from then on. If I...

Nit picking: it's spelt "integration" Also with those approximation questions, don't get caught out with the wording. "Two applications" means you have to use three function values. etc

Re: 11Unitss Too Risky?? Yeah my marks in Ext maths have also been crapola (so far). It seems you're doing very well in your other subjects, so I dunno if you should drop (it won't really help your other subs because they seem to be A. OK). Are you achieving in the 80s/90s in mathematics...

I'd just like to thank Slidey. Everytime I go through previous threads, he is always there helping us out. Thanks man for your time. :p

Hi I'm doing a parametrics question. I seem to be stumped by some simple algebra, so I would appreciate some help. this is a proof q - the answer is: PS = a(p2+1) I am up to this stage (don't worry the below is correct, I checked worked answers, i just don't know how to get to the finished...

Meh, just learn the course yourself like I did. It's not that hard to do.

The identity of who actually killed Owen Taylor the chauffer (although it is sorta implied that Brody did it) are shrouded in mystery (yes I remember reading that Chandler didn't even know himself). But for sure Carmen killed Regan. It's there in black and white if you really concentrate and...

Man you gotta get rid of those CRTs.

aha so true. I hate it when you sacrifice heaps, put in work and are still behind / stay up late.

Thanks Forbidden. Stupid mistake on my behalf.

"A battery charger is used to recharge 1.5V batteries through a 12V transformer. The transformer has 2400 turns in the primary coil. Assuming 100% efficiency, calculate: a) no. of turns in secondary coil (done, I got: 300) b) the output current if the input current is 10mA " Not sure with...

Re: Pressure From Parents Yep, same. I have high expectations of myself. Nobody puts pressure on me, only I do. Still feels shit though when you let yourself down.

Haha same person who wrote Dot Point (Shadwick) also wrote Surfing physics. I have the macquarie revision guide for physics. Is it about the same as those summary guides you mentioned?

Ah thanks, I think I kinda get the concept. IMO Jacaranda Physics doesn't go into this in enough detail hence my confusion.

I understand everything up to the part above. How do you conclude that the current is clockwise? (somehow i feel like I am missing something blatantly obvious) Thank you so far (and yes I checked, your answer is correct =)

The following question came from Dot Point physics, but for the life of me I can't figure out how to do these types. If anyone can tell me the answers and their rationale it would be greatly appreciated.