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Here you go :) http://community.boredofstudies.org/1005/general-discussion-2013-hsc/298401/ahmad-shah-style-based-notes-revised-edited-perfected.html

ahmad shah's revised bio notes

Re: HSC 2017 MX2 Integration Marathon $\noindent Find $\int x\sin^{-1} x dx

Re: HSC 2017 MX2 Integration Marathon $ I = $ \int_{0}^{\frac{\pi}{4}} \ln \left ( 1+\tan x \right )$ d$x $ $ = $ \int_{0}^{\frac{\pi}{4}} \ln \left ( 1+\tan (\frac{\pi}{4} - x) \right )$ d$x $ = $ \int_{0}^{\frac{\pi}{4}} \ln \left ( 1+\frac{1 - \tan x}{1 + \tan x} \right )$ d$x $ =...

Re: HSC 2017 MX2 Integration Marathon \int \frac{\sin x\cos x}{\sin^4 x+\cos^4 x}$ d$x = \int \frac{\frac{1}{2}\sin 2x}{(\sin^2 x+\cos^2 x)^2 - 2\sin^2 x \cos^2 x}$ d$x = \int \frac{\frac{1}{2}\sin 2x}{1 - 2\sin^2 x \cos^2 x}$ d$x = \int \frac{\frac{1}{2}\sin 2x}{1 - 2(\frac{1}{2}...

You should relax now, I didn't need to prepare for prelims and I still did pretty well

Yes, you have to state the triangle is isosceles as reasoning :)

Its x^3, not x^2 And yeah ahaha x=1 is still the answer

How did you factorise this?

I'm unsure if this method is correct: Point of intersection: y = -3x + 4 y = x^3 If we equate these two equations, we get: x^3 = -3x + 4 x^3 + 3x - 4 = 0 And now, we will find the integers that divide -4 and substitute it into the equation and see if we get LHS = RHS = 0. So: test x = -1...

Did awful in english, but got a good rank Did good in chem, but got an ok rank Phys, bio, 3u and 4u are very good right now :D Desired atar - 97

ii) Common denominate everything and expand. Make sure you use the conversion 1+w+w^2=0 and w^3=1

That should be correct.

Past paper questions are best to study with.

Nice work, but on page 13, 2nd last line, you forgot to flip the LHS and add a negative (since its a normal). The answer is still correct.

Chemistry :)

Can't tell if trolling or...

a + b + c = 0 cis(a) + cis(b) + cis(c) = 0 Now take the conjugate of both sides: cis(-a) + cis(-b) + cis(-c) = 0 1/cis(a) + 1/cis(b) + 1/cis(c) = 0 1/a + 1/b + 1/c = 0

212 marks worth of 4u past paper questions 98 marks worth of chemistry past paper questions 23 marks worth of physics past paper questions 2 reading tasks for english Physics and chemistry notes up to date :)