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HSC 2015 4U Marathon New Question (Cambridge): If |z| = r and arg z = theta, show that z/[(z^2)+(r^2)] is real and give its value.

Yeah sure

Solution:

Hey turntaker, I'm doing it as well :). Doing complex numbers first and finding it interesting, challenging but not too difficult (for now). Wbu?

Ok yeah I was wrong, I was doing it for pq + pr +qr = 0

Re: HSC 2014 4U Marathon Ah k, yeah it looks good to me.

Re: HSC 2014 4U Marathon Do all the roots have to be zero just because the sum of their products is zero? __________ And could somebody please post another complex number question, thanks.

I think Trebla did a song.

... u said that... you speak Canton... oh forget it...

Hawkrider: :shouting:

Going to ocean park?

:/

What?

Both areas have different reasons don't they? For the one that is the turn-off point could you say: "As the hydrogen fuel in a star's core runs out the core begins to collapse due to gravity and the star moves away from the main sequence."? EDIT: And then for the other spot could you explain...

Definitely this to an extent. The government has caused much conflict between Sunnis and Shiites. I don't think anyone 'deserves' to be shot, but in that situation yes I agree with you in that I think the police did the right thing. Stop being so naive.

When do you find out?

lol at my school everyone just drops to 10 units

Yeah I always thought that it was this but only 2 out of Physics, Chemistry and Economics.