Search results

Need to do work. Eg. IPT task due next Monday. *Really* have to get it finished >.<'''

Uhh, did you write Tn=(53/3)*(-7/6)(n-1)? If it's an AP, it should've been a plus sign, instead of a multiplication sign. Also, did the question specify that the sequence is an AP? It might have been a GP. Or maybe the textbook answer is for the sum of the first 4 terms. (I haven't done much...

You solve for a and b in terms of k and l, since you're not told what are the values of k and l.

Use Vieta's theorem aka relationship between sum and product of roots and the coefficients. So let the other roots be a and b, you get: - a + b + (3+2^0.5) = 11 - ab + b(3+2^0.5) + a(3+2^0.5) = k - ab(3+2^0.5) = -l Then solve simultaneously. :)

Just a small mistake: x=y^2 + 6, not y^2 - 6 :p

Look, if only I had that choice...

Oops, thanks for the correction. See, that's what happens when you try to write in vB code, even if you've got stuff written in the last line you get it wrong in the next XP

I wish I could go, except it overlaps with the time for NMSS. When I found out I was like, "Damn!" Otherwise I would've applied x.x

I have no idea what I'm gonna do at uni. Probably some science course? Yeah, you know, one of them from that giant blurb under the heading of "Science"...I just need to figure out which :p

*shock* You actually have the CHOICE of the option topic!! I wish we have that too :( Astrophysics is really far more interesting than Med :mad1:

Bleh. I think I've already forgotten what was my password :o Meh, I'll ask my teacher in IPT today, cos she's the one dealing with this sorts of stuff :p Oh and btw, what's with DET using fruit and nuts to make up people's passwords? I've heard about all these variations of blueberry, apple...

Well, I've got this English speech, an IPT database assignment, and need to prepare for this physics research and processing assessment task on NMR in Med, using info from a 24-year-old Scientific American article and this website. And of course, revise for all the subjects <.< I don't get...

Yes, SS the future lawyer :D Hum, I don't really know what UAI I'm looking at. Just try my best I guess? I'd be satisfied with any UAI I end up with then, cos I'd be content knowing that I did do what I can :p

Stayed up till 2am last night brushing up my English speech :o Now that it's out of the way...I can go to my IPT database assignment due in a week <.< Oh and look at this website on NMR for the physics research and processing assessment task. The teachers said that we don't have to know...

What's your studying method now? How do you consider it to be "hard" but not "smart"? How about learning your stuff by making notes and solidify it by doing questions in the textbook? Not necessarily all of them, just pick a few from each section until you're sure that you've grasped it :)...

Are you confident to get first in HSC PD/H/PE? If so, drop chem, since it's your worst subject. But in the end it all depends on what do you wanna do :) What are you planning to study at uni?

:p I guess I'm just better with geometry and all. Don't really like fiddling around with algebra too much XP

There's no need to call him a weirdo, he's just trying to grasp it o.0 Check out the link to vB codes under "Posting Rules" down the bottom. Just use the tags [sub ]-text-[/sub ] (without spaces) for subscripts and [sup ]-text-[/sup ] for superscript.

I would do this question geometrically. Since (z - i) / (z - 2) is purely imaginary, this means that |arg(z-i) - arg(z-2)| is pi/2 ie. the vectors (z-i) and (z-2) are perpendicular to each other. Thus, the lines from a point P(x,y) representing a complex number z=x+iy to the point A(0,1)...

Q1. Equation of the first reaction: Na2CO3 (aq) + 2HCL(aq) --> 2NaCl(aq) + H2O(l) + CO2 (g) The number of moles of Na2CO3 in the solution is 5.24/(22.99+12.01+3*16), thus its concentration is [5.24/(22.99+12.01+3*16)]/0.25 = 0.25253... mol/L. So in the 10mL used in titration, there are...