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i have like 300+ questions to complete of poly, graphs, conics, but i know i won't be able to finish them all. Can someone please suggest what should i study the most, in terms of its difficulty? Graphs = I'm decent Poly = Med (a lot of quesitons here to complete) Conics = Med ( same as above)...

remembering all the 2u stuff is a pain. It is second naure if you've revised for it a bit, but how about if i tell you to find standard deviation (general maths) do you still remember how to do it - without checking up? i know i barely do :hammer:

Who studies for 2U still even though doing 4U? Would you still study for 2U if your'e like ranked 20 in 2U or just keep studying 4U, just for the rep of being ranked high in 2U.

hey i never said 3 was right xD could someone please answer the question, i can't do it :(

ahhh i see the answer is effed then :L thx

sorry but also incorrect. you can't assume it forms a circle, as it has diff radii. it does not form a cylinder. oh yeah find the X>0 part not <0, forgot to add that in. The shaded region is between y = 8 and x^3 (x>0 part of graph) I did it differently but not sure if its right so yeah :fish:

this is incorrect as you are not finding the area bound by y=8 as well

The shaded region is bound by the curve y= x^3, the y axis and the line y=8 Determine the volume of revolution formed when this region is rotated about the x axis. Working out and not procedure (instructions) please. Thx Is the answer 576 pi /7? Confirm please :shy:

what are you talkign about you import? You were born in Vietnam then got transfered here :uhhuh:

200th post yay xP

lols wtf i posted this when bos was stuffing up, didnt even get through, but somehow appears today wow :P

you can't really find graphs on google, better to check it up in a book. On the argand diagram isnt it just a part of a circle ( or full) with the angles + radius set out differently depending on the graph o-o

how do i change: [cos(k-1)@ - 2cos@cosk@ into -cos(k+1)@ it's only one step (i think) but can someone explain please thanks :uhoh:

lol thats weird O_O your calc must be effed or something cos it = 3 when you type it in calculate ph of [CH3COOH] or what ?? your answer is wrong in my opinion cos theres 3 H+ and 1 OH i dno how to calculate H+ and OH- in the same equation so can't help sorry You have to find pOH and pH and...

lol fobby engrish ;) An addition reaction, in organic chemistry, is in its simplest terms an organic reaction where two or more molecules combine to form a larger one e.g. Ethene + Bromine > 1,2 dibromoethane In a substitution reaction, a functional group in a particular chemical compound is...

why does this post look funny o-o like miniature sized

damn bos is like a tutor influx, all the 09ers will soon be mad posting on this thread LOL

ye :drink: i remember doing this in yr 10

LOL DAMN ONLY STUDENT go around to other shools and go 'hey guess what, im first in 4u in my school, wna challenge?' :rolleyes: You're freaken fast man, we're only up to mid-way conics. Finished : comlex, poly, graphs Did nothing for term 4 except like 4 weeks of complex cos didn't have a room...

lols one of the students in my school is handing in your direct report :mad1: Pretty bs though, he said he cbf changing it...plagiarism to the max for hsc GG. I've used your report for a lot of referncing though, added you in the acknowledgement section too :uhhuh: Note: No it is not me.