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i dun understand the first question.. wot is it asking?.. can someone write an answer for me? its 6 marks .. omg.. and theres not much u can write about.. the second one is also hard..

but its jus sodium added to water , not sodium oxide and wouldnt sodium explode? . i dun get an increase in pressure cause decrease in volume (of gas?) hence the equilibrium will shift to the side with more water molecules. (why water?)

first one is haarrdd

a) distinguish between flexible peg and fixed exchange rate b) Outline at least 2 risks of having a fixed exchange rate c) would $A appreciate/depreciate if there was a rise in interest rates overseas? explain. d) Briefly explain how balance of payments influence the exchange rate thx

thx.. thats the way i did it as well.. Theres another faster way, like leoyh did

find the equation of the tangent to the hyperbola x^2-4y^2 = 16, given that these tangents are parallel to the line x- y root 3 +3 = 0 i dunno how to do this using cartesian equation of tangent .. need help.. thx

whoops.. posted in the wrong forum.. well anyways .. i got a eng question as well.. can someone give me a brief introduction to chaucer's pardoner's tale and prologue.. like, the story line.. also, im quite confused about the pardoner's tale, cantebury tale, prologue .. are they related..

wot daa, dunno wots reimann hypothesis or arcsinx this is from the products-to-sum chapter in the cambridge book ... u need to erm.. change sinmxcosnx to 0.5 sin(mx+nx)+cos(mx-nx) after some manipulation u'll get pi .. but i reckon your method is also correct...

pretty cool lol :D

heres the question :) i dunno why i cant get 0 if m don't equal to n

, ur looking for areas of triangle PQI and triangle PQT. not PQI or HKI .. triangle PQI and triangle PQT are not similar? .. MTI is not the height of any triangle ...

i know thats gona take 10 years to do.. even finding tangent at T will give u a messy equation.. there must be a straight forward way but if u've done it , i don't mind looking

okay, heres the question: 16) the points P and Q on thr parabola x=2at, y=at^2 have parameters p and q respectively. a) Find the midpoint M of the chord PQ, the point T on the parabola where its tangent is parallet to PQ, and the point I where the tangents at P and Q intersect. b) Show...

i'l think abt it.. thing is, it takes me 45 min to get to FSHS, its gona take me 1 hr to get to burwood

ehh thx, but i got another problem .. a locus one Q: p(x,y) lies on the line y=4x+3 . show tht M (midpoint of OP) has co ordinates (x/2 , 1/2(4x+3)) hence , find the locus of M

a) Draw the region between the parabola y^2 = 4ax and latus rectum x=a . b) Hence, find the dimensions of the rectangle with maximum area in this region. thx =)

oh, ur james fd haha :L

So... red rock deli has high pressure because it was packaged at ground lvl and its surrounding is low pressure because of high altitude. when high pressure moves to low pressure, that would cause it to deflate .. not inflate?

would a packet of red rock deli, sweet chilli and sour cream (mmmmnn yumm :P) chips inflate when it is brought on an areoplane and risen for a while? its random but the answer is yes from first hand experience :P but dunno why though..

lol, yeh okay.. n email to me when u have it :)