Search results

So I was doing a volumes question and I didn't get the right answer (from the textbook) so I checked this guy's full worked solutions and he got the same answer: What I don't understand is the line from 2pi [5x³/3 - x^4/4 etc.....] and subbing in 4 gives it 4³/3... is this a subbing in...

ohmagad completely forgot physics

Do different forms, you want to show the marker you can deconstruct various types of forms, having 2 poems will just seem like you're only good with deconstructing poems and you're staying away from a wider range of texts

LOL why thank you, sigh

Just find a past paper and do relevant questions

Practise, Practise, Practise, do past papers and get familiar with questions, I guarantee you it will help Rule of thumb is: focus on your weaknesses before the test, focus on your strengths during the test

Oh. The locus of w. That's actually a very simple question then, you subbed in x+iy in your first line of working as z but that's finding locus of z, to find w, just set the condition Re(w)=0 therefore x=0 is the locus. That's only a 1 marker in tests anyway, I got confused in my test with...

\\\text { Just to make things clear, I've latexed the solution }\\\\w = \frac{z}{z+2}\\\text{let }z=x+iy\\w=\frac{x+iy}{(x+2)+iy}\\w=\frac{(x+iy)(x+2-iy)}{(x+2)^2+y^2}\\w=\frac{x^2+2x+iyx+2iy-iyx+y^2}{(x+2)^2 +y^2}\\w=\frac{x^2+y^2+2x+(2y)i}{(x+2)^2+y^2}\\\text{If w is purely imaginary, then }...

The syllabus is stupid like that

Your teacher is incorrect, dilute water is used and must be used to rinse the flask

Correct! And yes, I have done it, my school's putting everything except mechanics and probability from harder 3 unit D :

\\a)\text{ Given that }I_n = \int_{0}^{1} (1-x^2)^n\text{ show that }I_n = \frac{2n}{2n+1}I_{n-1} \\\\b)\text{ Hence, show that }I_n = \frac{2^{2n}(n!)^2}{(2n+1)!}

Yep, that's basically what you need, make sure you do say why he killed the animals and people (i.e. scare people about how dangerous AC was) Bit of fun trivia, Edison actually called electrocuting people/animals "getting westinghoused" haha.

I have coroneos 4 unit textbooks and they have very good questions/explanations but when I was in year 11 and saw a coroneos book it scared me. And it might just be the font but that font looks so intimidating. Also, some of the stuff goes into too much detail

Fitzpatrick will do you well, very good explanations. I find Coroneos really intimidating to read cause it's so old LOL

Oh, I see thanks, haven't done conics like this before

The only way you're going to get better is to beef up on the past papers. Grab any one of those Qs from past HSC, if you don't get it, refer to solutions, find a similar one and try do it again. If you still don't get it, try youtubing help, reading textbooks or if you have a tutor, ask them...

Could you do it and show that? : S

Oh man that's heavy algebra. I get up to an expression like: \frac{PX}{PY} = \frac{b}{a}\sqrt{\frac{\frac{b^4}{a^2sec^2\beta}+sin^2\beta}{cos^2\beta + \frac{a^4}{b^2cosec^2\beta}}} Is that even looking right so far?

I would actually, but I need to confirm date, give me a day? PM email or something