Here our my answers for the questions I remember for people to compare to. This was the hardest paper I have ever done. Surds question -1/4 +3/4root5 Circles tangents first one 2x-20 and second one 2x+10 and radius r<2 (but I'm sure this is wrong) Substitution quadratic 1/16 and 81 Last question 18root27/12 this is equivalent to 27 hopefully I will still get full marks Indices 2^-6 and 2^13/3 Discriminant k< something or k>5 Transformation (x-2)^2(3-x) and stretch parallel to the y axis by scale factor 1/2 (don't think these are right) Coefficient of x^3 is -10 I'll add more when I remmber them
Translation I got x^2(5-x) and I think the r question was 0<r<3√5-5
I really hope so, I completely messed up the last question and think I have lost around 6 marks for the rest of the paper, hoping for a boundary around 56 to be sure of an A
Yeah I thought I got both of them wrong how about the others did u get the same
no bobby is right, go to https://www.desmos.com/calculator and copy/paste y=x^2\left(3-x\right) and y=\left(x-2\right)^2\left(5-x\right) into the left side.
Does anybody remember the question to do with points A and B? It was y=2x^2 and A was h and B was h+5... that's all I remember. There was a proof question to prove the gradient was something?
What did you get for the equation of the normal to the tangent at A?