Recent content by sicmacao

Extension 2 paper Hi everyone, could anyone kindly upload 2009 extension 2 paper on boredofstudies because I couldn't access the media website on the computer Thank you

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Hi: Could anyone put the 2008 mathematics ext 1 and ext 2 exam papers on the BOS? Thank you

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Do all the questions again, try to do it in an alternative way or perhaps in a "riskier" way or perhaps sometimes depends on the question, do it using the long method see if it yield the same answer. Also when you look at the answer, try to think about whether the answer is reasonable. Say if...

The good thing about the degree that I did is that it qualifies you to become a teacher. You don't have to do that degree if you plan not to become a teacher, you may consider bachelor of advanced science at usyd which they offer a lot of challenging courses in maths and sciences. I think...

You don't need 5 years. 4 years is sufficient at UNSW but 5 years are required in USyd but you get an honours degree in education. The good thing about unsw is that you get to choose whether to do honours in maths or education if you decide to complete in 5 years while at usyd you are forced to...

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If you draw the figure, the complex number w1-w2 represent the base of the isosceles triangle. The apex of the isosceles triangle has angle alpha1-alpha2. Hence the base angle is 1/2(pi - (alpha1-alpha2)). By exterior angle of the triangle the arg(w1-w2) = 1/2(pi - (alpha1-alpha2)) + alpha1 =...

Question 9 Ans: C 23 The question asks for a set that contains numbers from 1 to 50 inclusive such that the sum of any pair of numbers are not divisble by 7. How many numbers would such a set contains if it should contain as many numbers as possible. I will list the numbers to illustrate...

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L1 and L2 are constants, quotient rule and product rule does not apply eg d/dx(4x^3) = 12x^2, d/dx(Lx^3) = 3Lx^2

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noice level from L1 is N1 = L1/x^2 N2 = L2/(m-x)^2 The noice level at P is N = N1+N2 = L1/x^2 + L2/(m-x)^2 dN/dx = -2L1/x^3 + 2L2/(m-x)^3 = 0 solving to get L1/x^3 = L2/(m-x)^3 (note do not attempt to cross multiply and expand as the resulting cubic equation becomes difficult to...