Now I know the rules about this one, But I can't work out the second half of the sum,
1st half:
1. Find the value of such that the line with equation is a tangent to the parabola with equation
the determinant = 0 then there is only one intersection (tangent)
through DOPS
therefore
Now this is the part, I don't understand,
2. Find the possible values of c such that the line with equation twice intersects the parabola with equation
Any help would be much appreciated,
Thanks,
22upon7