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GOD what was I doing. K is M, sorry!

Oops, typo! Thanks for pointing it out :P

Thank you!

Wow I didn't realise that, thanks for the tip!

Thank you! I like your way of setting out the solution, clear and easy to follow.

Find the equation of the tangents drawn from the point (6, –2) to the ellipse 4x2 + 9y2 = 36. Thanks!

wonderful :cool:

how are you going with the Industrial Chemistry note?

Hi may I have a sample for The Acidic Environment? Thanks!

Yes please! :D

Wow I see, I learned something new :p Thanks for sharing your experience and I'll try to use Terry Lee more.

Really? I'm not quite used to Terry Lee's question style, I think it's more.. concept-based? like, trying to prove this and that, which I find so annoying since I never know how to do it lol On the other hand Cambridge has more exam-style questions, imo.

Hi all, I'm just wondering what do you guys think about the new Fitzpatrick textbook published in October this year. (This one) Our teacher said the difficulty level is just right - Cambridge too hard and Patel too easy (we don't use Terry Lee. I've bought one myself but found the...

Hi guys, I've literally spent one hour on this type of question (acosx+bsinx = Rcos(x−α)) and still can't figure out the right answer... May anyone please help me? I don't know where I did wrong. Here's my solution (didn't finish as I knew it's know the right answer) Answer:

Haha that's good :cool:

@Sy123 Thank you, finally understand now :cool:

@Drongoski Thanks. Definitely clear things up!

Thanks for the working of Q9, but I don't understand what's wrong with the z=1+...... part. Don't you use this equation where z^n = a+bi is z^2= [cos(pi/3)+isin(pi/3)]?

Thanks :) I scanned my solution for Q7, but not sure if I did the right thing :p There are four answers? I'm still working on Q9

Hi all, Can anyone please help me with these three questions? I really have no idea how to solve them... Thanks in advance!