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yep, chem is hard. But biochem in second year is harder =] prac exams are ok

i was thinking of choosing this but im not sure how it will be so i was wondering if u guys could me out. firstly, is this course hard and time consuming? What are the job prospects at the moment and how high will the pay be? In your opinion, if i had a choice between pharmacy and this...

say if your school is doing medical physics, can you sit the astrophysics one in the hsc (and you are fully prepared)?

dy/dx = dy/dt . dt/dx since dy/dx = 3x^2 +1 so 3x^2 + 1 = dy/dt.dt/dx move to other side: dy/dt = (3x^2 + 1). dx/dt

Find the values of k such that the equation x/(1-x^2) = kx has three distinct roots. Can anyone show me how to do this both graphically and algebraically plz?/ thanks :)

using part b and divide both sides by z^3. so it becomes : z^3 + 1/Z^3 +1 = (z+1/z -2cos2pi/9)(z+1/z-2cos4pi/9)(z+1/z - cos8pi/9) take out 8 from the right hand side and equate the real parts

can you gimme an example plz??

all topics are hard

im kinda stuck on a few questions... so any help would be appreciated 1.The origin O and the points A,B and C represents the complex numbers z , 1/z and z + 1/z respectively are joined to form a quadrilateral. Write down the condition or conditions for z so that the quadrilateral OABC will...

4a. y = (x-2)(x-2) - factorise y = (x-2)^2 This is in the form (x-h)^2 = 4a(y-k), where a = 1/4 vertex: (2,0) focus: (2, 1/4) directrix: y = -1/4 and the axis is the y axis b) complete the square: y = (x+3)^2 - 3 y+3 = (x+3)^2...

1. half of the span is 16cm being 10cm high. Therefore let that point be on the parabola P(16,10). let the focus be S(0,a) and the directrix be y= -a we know that the distance from the focus to any point on the parabola equals to its distance to the directrix. draw this info and we know...

^ definately. how can anyone not love integration

hey, can you guys help me out with these questions? 1. Determine the locus of the complex number z given arg (z-2) = arg ( z+2) + pi/4 . Sketch the locus on argand diagram 2. If q is real and z = (3+iq)/(3-iq) show that q varies the point in the complex plane which represents z lies on a...

1. a) Show that the tangent to P: y = ax^2 +bx + c with gradient m has y-intercept c - (m-b)^2/4a b) Hence find the equations of any quadratics that pass through the origin and are tangent to both y= -2x - 4 and to y = 8x -49 c) Find also any quadratics that are tangent to y=-5x-10, to y=...

AH ha ! i finally get it now. Thanks guys. No wonder i lost three marks for |2x-1| - |1-x|<3 in the first assessment task. :eek:

where do u guys get practice questions for year 11? the questions from jacaranda is simply not enough! :vcross: more!! ;)

well i got it from the Jacaranda Textbook 1 can we trust its answers?

what happened to the book 1 solutions??? :confused: :confused:

A brand new Rolls-Royce rolls off the back of a truck as it is beling delivered to tis owner. It lands on its wheels. The truck is travelling along a straight road at a constant speed of 72km/h (20m/s). The Rolls-Royce slows down at a constant rate, coming to a stop over a distance of 240m. It...

can you guys help we out with this question? Prove that: a)[(sin^2 a - cos^2 a)(1 - sin a cos a)] / cos a (sec a - cosec a)(sin^3 a + cos^3 a) = sin a b)(1+ cosec^2 A tan^2 C) / (1 + cosec^2 B tan^2 C) = (1+cot^2 A sin^2 C) / (1 + cot^2 B sin^2 C) c) If tan a +sin a = x and if...