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  1. shaon0

    Differentiation Question

    The edges of a square are increasing at a rate of 5cm per a minute. At what rate is the area of the square increasing, when the edge is 3cm long?
  2. shaon0

    Polynomials

    Find constants a,b,c such that: x^2 +10x+c = a (x+2)^2 + b(x+1)
  3. shaon0

    Questions on polynomials and co-ordianate geometry.

    The line y=mx-3 is a tangent to the curve y= x^3 + x^2 with the point P where x= alpha. i) Describe the nature of the roots. Is it the will be a double root at where at the Point P. ii) Find the roots of this equation and the value of m.
  4. shaon0

    Locus question.

    Show that the tangent at the point P(x1,y1) on the general degree 2 curve: ax^2 + by^2 + 2cxy + 2dx + 2ey + f = 0 is ax.x1 by.y1 + c(x1.y + x.y1) + d (x + x1) + e(y +y1) + f = 0
  5. shaon0

    Locus.

    Given the points A(1,4) and B(-3,2) find the equation of the locus such that angle APB is a right angle.
  6. shaon0

    Urgent Marking/Advice needed

    This is a monologue that i have been preparing on the Catcher in the Rye for Advanced English. This is a supposed discussion between Mr. Antolini and Mrs. Antolini which did not occur in ‘The Catcher in the Rye.’ Why did Holden just leave in a hurry? Lillian did you just see that? Was it...
  7. shaon0

    Question

    What does a tangent to a parabola mean? Is it the right angle a parabola makes with a line?
  8. shaon0

    Literary Criticisms

    Does anyone know where i can get some Literary Criticisms from? Any help will be appreciated.
  9. shaon0

    Medical Science?

    Does B.Medsc allow you to be a GP?
  10. shaon0

    Should I do 4unit Maths?

    I have been having a dilemma lately. I am finding Extension 1 Maths relatively easy but this is not showing up on my Assessment marks for Extension 1. If so should i do Extension 2? Any advice will be appreciated.
  11. shaon0

    Co-ordinate Geometry Query

    I find this topic the hardest in the Prelim MX1 course...i don't get the internal and external ratio concept. Could someone explain it to me?
  12. shaon0

    Science/Engineering Degree Question

    Is it possible to combine Science and Engineering for a high UAI course? Example: If i wanted to do Science/Space Engineering which is a UAI of 94.55 when when Space (Mechatronics) Engineering is 98.80. Is this possible?
  13. shaon0

    Scholarships

    Do Usyd have any scholarships available for high school leavers like UNSW has?
  14. shaon0

    Why is 0^0 undefined?

    Is it because: Let b=0 Assume b^b=x b.ln(b)=ln(x) 0.ln(0)=ln(x) And ln(0) is undefined since x=0 is an asymptote in a natural logarithmic function. Thus, 0.Undefined=Undefined. Therefore, 0^0 is undefined. ---I'm just wondering..
  15. shaon0

    Question Help Needed...

    I need help with this question.... --For the first question i tried: (3^x+1 + 3^x-1)/3^x =(x+1.ln(3) + x-1 ln(3))/ x.ln(3) =ln(3)(x+1+x-1) / ln(3).x =2x/x =2 --For the second question i tried: 625^x+y = 1/5 x+y.ln(625) = ln(1/5) x+y = -1/4 Thus, y= -(1+4x) /4 ....(1A) 32.2^x = 4^y.....(2)...
  16. shaon0

    Year 12- Polynomials Help

    Could someone help me with: This is from the Year 12: 3unit Cambridge textbook.
  17. shaon0

    Test Papers

    I need past papers for Maths 3unit, Physics and Chemistry. Are there sites where it is possible to get past papers for preliminary HSC from other schools? If so could someone PM me the links to thesse sites...Thanks in advanc.ed
  18. shaon0

    UAi estimate :)

    Hey i am in year 11. School rank is 393. Results from half-yearlies: Physics: 6/~30 (Mark: 70%, average: 58%) Chemistry: 5/~30 (mark: 91%, average: 64%) Maths 2unit: 6/~60 (mark: ~80%, average: 55 to 45%) Maths 3unit: 14/28 SOR 1: 21/~120 Advanced English: 34/~65 Advice would be...
  19. shaon0

    How long do you study a day?

    ... Are you commited to your work or is it only just Year 11?
  20. shaon0

    UDBECs

    Does anyone know how many University Developed coursse there are for the HSC? Can someone list them.
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