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gg read the date nubs.

90+ for 10 units. Those 10 units do not need to include english.

The scaling of a subject is based on the average of that subject for the whole state vs the average of other subjects (excludes extensions). In essence you could say that your hsc mark for a particular subject itself is a ranking. If physics for example had an average of 40 for the entire...

Arg z(z+3) = pi/2 let z = x+iy z(z+3) = (x+iy)(x+iy+3) = x^2 + xiy + 3x + xiy -y^2 +3iy = x^2 +3x - y^2 + i(2xy + 3y) arccot( (x^2 +3x - y^2)/ (2xy + 3y)) = pi/2 Cot both sides x^2 +3x - y^2)/ (2xy + 3y)) = 0 x^2 + 3x - y^2 = 0 (x + 1.5)^2 - y^2 = 2.25 (x + 1.5)^2/2.25 - y^2/2.25 = 1

I was talking to the math teacher writing the first math 4u test, at he said to me, the test difficulty will definitely not be as hard as terry lee, instead more like the average difficulty of the cambridge 4u, which are as a whole, incredibly easy relative to terry lee. edit: i've got both...

a) A = P ( 1 + (0.058 x 8)) 15000 = P ( 1.464) P = 15000 / 1.464 = 10245.90

Fitzpatrick: Very stock questions, with the occaisional challenging problem. Cambridge: + Wide range of questions, from easy to very difficult - big and heavy to lug around.

I think Euler's out of the current 4u course. e^(xi) = cos x + i sin x (euler's formula) Subbing in pi cos (pi) + i sin (pi) = -1

1. S5 = 35 = 5/2(2a+4d) 14 = 2a + 4d ...1 S10 = 35+160 = 195 195 = 10/2(2a+9d) 39 = 2a + 9d ...2 subtracting 1 from 2 25 = 5d d = 5 Sub d=5 into (1) 14 = 2a + 20 2a = -6 a = -3 Thus, a = -3, d = 5 2. Sn-1 = T1 + T2 + ... + Tn-1 ...(1) Sn = T1 + T2 + ... + Tn-1 +...

When n=k k(k-1)/2 as true. We prove n=k+1 I.e we prove. (k+1)(k)/2 When increasing the amount of people in the room from n=k to n=k+1, k hands must be shaken. So we prove: k(k-1)/2 + k = (k+1)(k)/2 LHS k(k-1) + 2k / 2 = k^2 - k + 2k / 2 = k^2 + k /2 = k(k+1)/2 = RHS, as required.

There is no common ratio between them. But say for example a sequence such as : sin^2 x, sin^3 x, sin^4 x. The common ratio would be sin^3 x / sin^2 x. Which is just: (sinx)(sinx)(sinx)/(sinx)(sinx) Canceling the common factor, we see the ratio is sinx

there is no 'sin x' as a such on the calculator. only sin If you want sin^2 30 You would put in the calculator: (sin 30)^2 Calculators can't do algebra. (atleast not mine) If you don't have sin on your calculator, you might want to upgrade to a scientific one.

Since it's bromine water wouldn't they expect HOBr instead of Br2 Br2 + H2O <---> HOBr + Br- + H+ Acyclic Alkenes: CnH2n + HOBR --> CnH2nBrOH Cyclic Alkenes: CnH2n-2+ HOBR --> CnH2n-2BrOH

yr 11? why?

High band 5 in english, with 100's in every other subject can do too :P

However it has answers to long response questions and shows where each mark is allocated, which is definitely a huge plus. What other books has this?

i don't think anyone that dropped out would be on these forums :/

someone tell me if i'm doing it right. " Find the equation of the parabola with focus S (-1,1) and the directrix y=x-2" Let focus = A Let the Directrix = B Let parabola = X AX^2 = (-1-x)^2 + (1-y)^2 AX^2 = 1+2x+x^2 + 1-2y+y^2 AX^2 = 2 +2x+x^2+2y+y^2 BX = abs ( x - y +2) / sqrt (2) BX^2 =...

they can ask you to differentiate something using first principles, so you will need to know how to do them.

What does the question ask, exactly ? word for word?