Recent content by mani88

Wait I think I'm gonna get around 85 as my raw mark for the HSC, but I got like around 65 for internals, with my rank being 12th in the cohort. Will this be enough to pull a E4???

yes please could someone share the paper if they have it???

This is the full solution

The extra 2 comes for 2\cos\frac{k\alpha}{2}

Yep I see it now sorry that was a bit incorrect, i just fixed it up

i cant even see what i typed, its just coming as a small square

LHS=(1+\cos\alpha+i\sin\alpha)^k+(1+\cos\alpha-i\sin\alpha)^k \\ =\left(2\cos^2\frac{\alpha}{2}+2i\sin\frac{\alpha}{2}\cos\frac{\alpha}{2})^k+(2\cos^2\frac{\alpha}{2}-2i\sin\frac{\alpha}{2}\cos\frac{\alpha}{2}\right)^k \\...

Use Double angle formulas to get rid of the 1 in the LHS and then start from there

What 4U exam???

Surely that question is not in the syllabus

Hi, I was wondering if anyone has the excel biology book either as a pdf or a hard copy. If so, can someone send me just the questions for module 5 and 6. I dont really need the theory, but just looking for the questions. This would be greatly appreciated. Thanks! :)

oooo thank you so much!!!

Hi, I was wondering if anyone has a broad essay question for the common module, that I can write my master essay on. My prescribed text is Billy Elliot. Thanks!

You can also do it algebraically by considering z=\cos(2\theta)+i\sin(2\theta)

yh I ended up using them instead