for part ii, as the point is vertically below the vertex of the parabola, the angle that forms between the tangents is twice the angle of the gradient of one of the tangents, draw a rough sketch u'll get wat im saying, since tan x=m, 2x gives u the angle between the two tangents.
you find the...
once u solve simultaneously u get x^2 -8px + 16p^2
the disriminate=( 64p^2 -64p^2)0.5
therefore for all values of p discrimate is equal to zero, therefore a tangent at all values of p
please help me with my question...
Need help on this question, its from a James Ruse 05 or 04 trial HSC
part i and ii are easy, iii I used the sin rule, and iv i have no clue
any help would be great
Please
Thanx
Please could someone predict my Uai
Go to really low ranked school, but the current yr 12 is probably the best its had
My marks than overall ranks are
English Adv: 70, ranked 19/50
Maths 2 unit; 86, 5/80
Maths ext 1: 58, 9/30
economics: 80 5/38
legal studies: 85 2/55
physics: 74 4/45...