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yeah, you might be right

1

Mate, I make Dendi my bitch

13 i got d, because i think it said 'made from plants' so it has to be cellulose right?

I have a question ... idk how to use latex so i'll just type it out In the equation they gave us for 14biii) Isn't there a general term in there which is [2n-k]C[k] . x^(2n) . 2^(2n-2k) which I'll call /1/ Since we want to equate the coefficients of the term x^(2n)... can we sub the...

14biii) Would you lose any marks if you didn't show n=1,2,3 ... but did all the other steps, if so how many?

for the solution the f) Would you lose a mark if you didn't factorise out the 1/3?

Do you think i could get 1 mark for that question ....

Yeah i know now

Yeah ... i think i got it wrong ... obviously didn't use part a_

Yeah im starting to think its wrong --> people are getting around 60s with a different method --> maybe it was the assumption that r was a constant was wrong =/

Yah! i got like 20.68s from integrating the dV/dt equation and subbing in 'r' -> which i think was a constant in the formula

for the water droplet Can you integrate the dV/dt -> and you get like v = (-10^-4)(4.pi.r^2)t + c Sub in conditions Sub in r (from subbing in V in the formula volume formula given) to get the answer

did anyone get around 20 s for the water droplet evaporating?

Yep ! 0.0972

Don't we sub in t1 approximation from part i)?

For q12 dii) Did we just have to show that P was the midpoint of AB to show O lies on the circle? did we have to give reasoning or something that PA and PB were equal radii?

i guess d for q10 as well - looked like a nice number

parabola (x^2)/4 - (y^2)/4 < 1 =/<--- hyperbola

What do you guys think the raw mark will be for 95 externals?