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Hmm okay... Why would the tangent be vertical if dy/dx is undefined?

My contribution towards Ext 2 Maths is the limit of t as it approaches infinity :P

Hello, I'm having trouble with this question. The gradient that I get is undefined. How do I work around it? Thanks Find the equation of the tangent and normal to 4x2+y2-16x-2y+13=0 at (3,1) Thanks again!

'Assumed knowledge' for Preliminary Sciences (though I can only speak for Chemistry and Physics) is really not important. I mean, an overseas student who hasn't done Science before often do well in them, so I think that speaks for itself. So don't stress if you don't quite fill the criteria of...

On what basis do you say that? Yes, women may be physically weaker than men. But that does not give men the right to be able to demand sex whenever they want from their wife, even though she's not up for it, and it also doesn't give them the right to have four wives at once. It also...

And what purpose does that serve? Will it change the woman's mind? The 'light hit' itself obviously will most likely not. A 'light hit' can also be very subjective, and it probably will escalate to domestic violence, given that the husband will probably not be in a good mood after being...

No, it's NOT okay to beat ANYONE, especially because they wont have sex with you! Idealistically, the idea of beating a woman, but not bruising or making them bleed (which is described to be a knock on the shoulder) doesn't sound bad. But this stupid idea doesn't take into account of human...

I think everyone has one. You just need to post in it.

WTF has the world come to? A Muslim cleric even has messed up ethics, or is that what that religion is all about?

Too bad that we're doing the binomial thereom last (ie. AFTER the trials). Would it help with other topics if I learn it now?

lol, what's the likelihood of being asked those questions in an exam? :|

You basically have to find the initial Ep of each satelite, and final Ep. Then find the change in them, and you should have the correct answer. Can't be bothered doing all the working now.

Thanks for your help. But I have a question about that... I'm pretty sure you're getting sick of hearing this from me... Why do you square the results that were obtained?

Thanks for your reply. Where would this be covered? Because I don't ever recall dividing a quadratic to simplify it.

Yes, I know that he divided the two equations. But I'm wondering why he did that. Thanks for the helps btw

w=(3+4i)/5 z=(5+12i)/13 wz=[(3+4i)(5+12i)]/65 =(-33+56i)/65 w(z cong)=[(3+4i)(5-12i)]/65 =(63-16i)/65 652=332+562 652=632+162

Honestly I don't want to mess around with a RAID setup for my home computer. I think my motherboard has a RAID controller or something but I don't use it. But then again, I like to keep things simple. Of course in a server environment RAID is definitely an option to consider. But still I...

Hello, Thanks for your help guys I have another question. I'm a bit lost on this one. So an explanation of some steps would be great. a) Find the catesian equation of the ellipse that P(2cosθ, sinθ) and Q(-2sinθ, cosθ) both belong to. (Done this one, it is x2/4 + y2=1) b) The tangents at P...

There are many types of RAID configurations you can set. The one that your mate mentioned is the one where you 'merge' your 2x250GB hard disks as one drive, ie. 1x500GB. Honestly though, don't do it. It's a waste of money and serves no purpose for a personal computer, unless of course you are...

Hello, Thanks for your help, but where did you get y/x from? Also, wouldn't the chord be bounded by the ellipse, so I would need to give some sort of domain right?