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The best temperature for the reaction is 37 C.

"You know, I've got one hell of a mass-charge ratio"

Volumes of high concentration HCl absorb water from the air. It is therefore uncertain what the actual concentration of the stock bottle is.

I think what he means is learn the indice laws, from 2 unit, really well before doing this type of induction.

Sigma just means the sum of every integer from the bottom number to the top number... kind of. its hard to explain.

with the original question we had this question in a 3U exam asking for the poly. with roots a^2, b^2,c^2 given a poly with roots a, b, c. Really easy question for a 4U person but really hard for a 3U.

The easiest way to do it is: X^2-A^2>0 Try to think of this as a parabola. The parabola cuts the x axis at A and -A and is concave up Therefore, X>A or X<-A

The actual syllabus dot point says "outline the steps in the production of polyethylene as an example of a commercially and industrially important polymer"

Should we also remember standard temp/pressure for hydration ie 330 C/60 atm?

Yeah, those James Ruse guys are gonna be so evilly stared at

there are 18 in my class, and there are quite a few dumbarses. They make the lesson funny a lot of the time

Arnold/Arnold and Fitzpatrick for me. I just go to the teachers if there's a question I can't do.I guess they're bad textbooks if you don't have a good teacher

MX2: Wednesday, on Complex numbers, polynomials, conics, Harder circle geometry and induction.

Can't you just say the equation has 4 roots since its of degree 4 and then sub in each of the roots to show that they satisfy the equation?

The Prelude is such a long poem you only really need to focus on particular areas. Lines 220-230 are important, focusing on his own thoughts but describing them with natural imagery. Lines 360-400 are to do with the relationship between man and nature and WW uses peronifications and haunting...

Can they actually ask us a question in the HSC on that kind of thing? i.e. model kits