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Q. The chord of contact of the tangents to the parabola x^2=4ay from an external point A(X1,Y1) passes through the point B(0,2A). Find the equation of the locus of the midpoint AB. :smile::smile::smile:

Q1: If the points P(8p,4p^2) and Q(8q,4q^2) lie on the parabola x^2=16y and R [4(p+q), 4pq] is the point in which the tangents at p and q meet. What is the Cartesian equation for the locus of R? Q2: The equation of the chord of PQ is y= (p+q/2)x -apq. M is the midpoint of the focal chord PQ...

Ok im really sorry but i did not learn how to do it that way, is there a chance you can show me by doing the t results?

sorry, i didnt understand the way you did it on the other post. can you do it by the t results? Do you expand the double angle before you use the t results or not?

Yes i do extension and i have learnt the t results, not the auxiliary angle method. Ive tried using t results and it didnt work for me, thats why i need help.

hi guys, ive been struggling with this question fora quite a while, i need help really badly. The question is: Find the possible values of tan x if: 9cos2x + 7sin2x = 1

hi guys, ive been struggling with this question fora quite a while, i need help really badly. The question is: Find the possible values of tan x if: 9cos2x + 7sin2x = 11

Thanks heaps for the help. Really appreciate it

I am really struggling with these 3 permutation and combination questions and so i was wondering if anyone on here knows how to do them? Q1: Find the number of ways in which 3 boys and 3 girls can be arranged in a straight line so that the 3 boys are not all next to each other. Q2: Find...