Search results

  1. J

    Quadratic Polynomial Help! From Cambridge.

    Hey Guys, Can anyone please help me with question 12 (a) and (b) Exercise 9B from the year 11 cambridge textbook? I've been stuck on it for ages. I don't know the relationship between 'a' and the tangent. Thanks!
  2. J

    Which textbook for Year 12 acceleration?

    Hey guys, I'm a preliminary student planning on accelerating the hsc 3-unit course throughout these holidays and next term. I would really like to get as much done as possible. What do you guys think is a good textbook to assist in doing that? I'm thinking of getting the new coroneos year 12...
  3. J

    Coordinate geometry help :(

    If AB is a diameter of a circle with centre Q(4,5) and A = (8,3), find B. Help please!
  4. J

    Trig question

    How do i solve this? sin ( 360 - x ) . tan (90 - x)
  5. J

    Maths help!!!!

    Hey guys, Can you guys please show me how to do this problem? Been stuck on it for over an hour. Solve |t + 2| + |3t - 1| < 5 Can you guys show me how to solve it graphically and/or algebraically. Thanks a lot! + rep btw :)
  6. J

    Coordinate geometry help :(

    1. (a) Show that the point (-7,7) lies on the line joining A(-2,0) and B(3,-7). (b) Find the ratio in which the point divides AB. 2. Find the coordinates of the centre of a circle that passes through points (7,2), (2,3) and (-4,-1). For question 1, i already found (a) but don't know...
  7. J

    Quadratic Polynomial Help!

    Hey guys! Can you guys please help me with this question? The roots of the quadratic equation x^2 - (2k+4)x + (k^2 + 3k + 2) = 0 are non zero and one is twice the other root. Calculate the value of k.
  8. J

    Neep help with a quadratics question!!

    Can someone please show me how to do this question? Consider the circle x^2 + y^2 -2x - 14y + 25 = 0, (i) Show that if the line y=mx intersects the circle in two distinct points, then (1 + 7m)^2 - 25(1 + m^2) > 0 (ii) For what values of m is the line y=mx a tangent to the circle? Thanks so...
  9. J

    A UMAT question and Dentistry Question :)

    Hi guys! Well... I have been told by a few of friends that some of the girls in my that want to do medicine in uni have already started UMAT tutoring. I'm only in year 11 this year but was wondering if it is the right time to start UMAT tutoring now. Like maybe buy the papers from a certain site...
  10. J

    Maths Topic Test Notification

    Hey guys! Do i have my maths topic test in a few days and i wanted to know, does it count towards my report or anything at all? We never got a sheet that we had to sign confirming that we know we have a test in a week or anything. All the teacher did was tell us that we are having a topic the...
  11. J

    Trig help!

    How do i solve this equation for x: sin2x = cosx So confused... :(
  12. J

    Quadratic Polynomial Help!

    If the equation x^2 + 2x + k = 0 contains real and distinct roots with k >0, prove that the roots of the equation x^2 + 2kx + 1 =0 are imaginary. Please help. I don't know how to go about doing this.
Top