I'm in a quick need for some more past HSC mex2 solutions. Can anyone please tell me where to get some from.
P.S. I allready have the 2003 and 2004 worked solutions.
This question doesn't seem like it's in english! I might have a shot at the answer if I understand the question.
The question is:
By applying de Moivre's theorem and by also expanding (cos(theta) + i sin(theta))^5, express cos(5theta) as a polynomial in cos(theta).
I have no idea what...
I need help in understanding how to do the 2003 maths extension 2 question 3 part (c). I generally know how to do volumes of solids of revolution, however I don't know what to do for this question because there are two possible x values or each y value and the question requires you to find the...