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Re: Trials next week ! wow... I wish my school did that.

\\(i)P(x)=(x^2+6x+8)Q(x)+2x-11 \\F(x)=(x^2+6x+8)Q(x)+x+4 \\\frac{P(x)}{F(x)}=1+\frac{x-15}{x^2+6x+8} \\Deg[\frac{P(x)}{F(x)}]=Deg[1+\frac{x-15}{x^2+6x+8}]=0 \\Deg[P(x)]=Deg[F(x)]

Doing astro, but always wanted to do Q2Q Do Q2Q!

Re: Westpac Maths Comp marathon \\x+y+z=4 \\x^2+y^2+z^2=10 \\x^3+y^3+z^3=22 \\ \\x^2+y^2+z^2=(x+y+z)^2-2(xy+yz+zx) \\10=16-2(xy+yz+zx) \\xy+yz+zx=3 \\ \\x^3+y^3+z^3-3xyz=(x+y+z)(x^2+y^2+z^2-xy-yz-zx) \\22-3xyz=4(10-3) \\xyz=-2 \\ \\x^4+y^4+z^4=(x^2+y^2+z^2)^2-2xyz(x+y+z) \\=100+4(4) \\=116...

Re: Westpac Maths Comp marathon 111=37x3 222=37x6 333=37x9 444=37x12 555=37x15 666=37x18 777=37x21 888=37x24=74x12 999=37x27 (C) 7.

Re: Westpac Maths Comp marathon For the train Q, (D) is the answer. Remember that the train takes 45 seconds to travel the distance of 600m+its own length.

same here-->19 (can't remember the symbol though)

ironically i didn't carefully read it and got it wrong ROFL

Very easy (I got the prime number question for Q1)

But section 2 had much more reading! I finished section 1 in time but I couldn't even attempt 7 questions in section 2 coz it was both more difficult and long!

lol i thought my trial (which has questions from cssa, independent, and various school trials + their own questions all mixed, I believe) was gonna be easier than the HSC That's just an aim anyway. Haven't tried real papers yet so I don't really know what I am capable of but it doesn't...

Section 1 was easier this time than usual (at least easier than medentry) How come section 1 is catching section 2 up?! lol

What are you gonna focus on? Covering the whole syllabus What is your aim to achieve in the trials? Rank? Percentage? 1st rank % aim=over 95 What is it that still troubles you? It takes too long a time to prepare for physics lol. How are you going to fix it by the trials? By spending a...

I used to go onto BoS but nowadays, since BoS is blocked, I just do nothing. I can't concentrate during my free periods for some reason and hence can't study in those periods.

EAS scheme works for "Work requirements to support family and/or responsibility to work in a family business." But this does not improve your ATAR. Only admission rank when you apply to your uni.

\\$Let the centre be C(x,y).$ \\\therefore PC^2=PQ^2 \\(x+2)^2+(y+1)^2=(x-5)^2+(y+2)^2 \\x^2+4x+4+y^2+2y+1=x^2-10x+25+y^2+4y+4 \\y=7x-12 \\$sub this into 3x+y+2=0 \\x=1 \\y=-5 \\ \\Radius^2 \\=PC^2 \\=(x+2)^2+(y+1)^2 \\=25 \\ \\$Hence the required equation is (x-1)^2+(y+5)^2=25.

lol i did it but completely forgot i can do it if u have the diagram

Lol. Did it today. It was quite easy.

but u can read the stimulus during that time

inconclusive