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so... your saying cosec2x= 1-cosec2x EDIT: thought somthing didnt make sense ok moving on.. EDIT: sorry about this on the third line on the RHS, shouldnt you have tan2x +cot2

wait..wait.. im a bit slow Lotto, can you explain your first line.....it doesnt make sense to me...:confused:

sorry, just did a late edit

*bump* EDIT: next question: prove that (secx+cosecx)/(tanx-cotx)=(tanx+cotx)/(secx-cosecx)

Re: Economics Marathon - The 2006 Version macroeconomic policy aims at stabilising the fluctuations of the business cycle in an attempt to prevent excessive inflation rates or reduce high unemplyment levels in the eonomy as a whole. macro eco. policy includes the mainly the use of monetary and...

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Re: Economics Marathon - The 2006 Version economic growth refers to sustained increases in domestic output over time. it is caused genrally by increased standards of living, higher real wages, economic development etc. external stability refers to the situation where the external sector does...

i think the guy who burnt the flag is stupid i think the media is stupid for giving it so much attention i think the politicians who commented on it are stupid i think the person who started this thread is stupid i think im stupid for replying

sorry.. whose ignorant...typical of a loser.. once hammered they resort to complete bullshit... tell me...where did you get that date? ziggy got sacked in july 2005 when the share price was around $5 since then it reached a low of like $3.45

i trust you mean = - b^2/a^2 find the gradient of PS and QS where S is (a,0) and since they subtend a right angle they multiple to get -1. so (b^2sin@sin%)/(a^2(cos@-1)(cos%-1)) = -1 break down the sin @ and the sin % to half angles in the numerator ie 2sin(@/2)cos(@/2) and 2sin(%/2)cos(%/2)...

i thought it was to do with alphabetical order, which would mean your right.

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next question: cant find any tough ones, so..... water is flowing into an inverted cone of base radius 3cm and perpendicular height 7cm, at a rate of 21cm3/s. find the rate at which the surface are of the water is increasing when the depth of the water is 6cm.

oh dear, 3 different answers! i didnt give my reasoning, so here it is...

PS = 3PM so PM^2 = 9PS^2 ie 9(y^2 + x^2 -2x+1) = x^2 - 18x+81 then simplify to get 8x^2 + 9y^2 = 72 then divide through by 72

oh sorry, you mean the e is the one-third, silly me

why do you need the e? i thought its just one of those basic 2 unit locus questions i got an ellipse, equation 8x^2 + 9y^2 = 72

and thats why at his appoitment telstras shareprice has since slumped to an all time low

for the comb. question, apparently the answer is 15, so you guys are right