J&C Book 2 Exercise 23.2 Q1 a) :
Find the equation of the chord joining:
t1 = 2, t2 = -1 on
x=2t,
y=t^2.
Show that this chord passes through the focus.
I got to the equation of the chord (x-2y+4=0), but the focus part!
from the set of parametric equations,
t= x/2.
substituting t...