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Your teacher made a mistake. 4^-1/5 is the root (X_o), if there is a double root with varying c. The minimum c value is 4^-4/5. Try it on a graph calculator. The difficult part is the indices.. with minus and fractions.

I checked it with graph calculator.. and using that minimum c value, it doesn't even touch the x axis, where it's supposed to have a minimum double root there, if the question is right..

They are the best. They devote all their time towards education of the country, while contently receiving pays.. Truly, we should consider them heroes. The amount of gratitude that we should show them is far beyond comprehension.. BTW My PIN number is 2093. Im a very good student.

hasm, you mean my answer is also correct? :D multiple answer multiple choice??!? btw did you get the gravitational potential energy q right?

drbuchanan posted the paper, so i guess its ok :) wuah man.. does that work? my long working would be useless then...

maybe your teacher trying to put your marks down, telling you to "study harder"? thats what my maths teacher always does.

me opted threshold frequency (try correct my spelling :))

psst, what do they do when they read it? scale it up higher? than i suggest everyone complain as hard as you can about it here :D

I'm also curious, since I miss his questions. Probably he didnt go as much because no-one was able to do his questions, or he got someone to tutor

thanks, doctor :) time for me to go over my mistakes...

For the polynomial q, x^4 - x^3 + 2x^2 - 2x + 1 = 0 x (x^3 - x^2 + 2x - 2) = -1 x = -1 / (x^3 - x^2 + 2x - 2) for x to be a whole number, x has to be one. however one is not a root of the equation. Any whole number value for x will give a fraction with a whole number denominator. If...

they're still no match to band 7 marks. even this guy realises the power of 7 ::>

psst, why not the sydney uni com.law? 99.6 isn't so much different than 99.3 :p go get +10 in each subject. It's just additional hours per week.. :D

pfft you should have given me a discount for that geha book then :) say.. $5? :D

If you're doing preliminary, dont bother about the "constant relative to all observer", since that'll only annoy you :D save it for the HSC

refraction, diffraction, reflection, travel in straight lines, which is in all waves. speed depends on medium is for mechanical wave. Electromagnetic wave speed is constant relative to all observer.

there's still time before the hsc.. let's all be elite and do age of silicon!

consider clicking the (www) link :).

CSSA chemistry asked how to improve a BaSO4 experiment.. that was bullcrap.. btw Ragerunner, i think your avatar has a bit of misfit there :D

Don't think it'd be so hard to remember them.. just read them everyday like a prayer before night. God, please assist me in remembering the name of polyhydroxybutyrate.. btw you also need to know the history of it's development, i believe.