Let the line lx+my=1 cut the parabola at point C.Normal from C other than these two meet the parabola at Dthen find the co-ordinates of D.

equaton of parabola is not given in question?????????

HINT:

solve the equation of parabola and line u get a point .write equation of normal at that point and olve this normal with parbola.u get two point one is the same point from where u have written the equation of normal.and other is required point d.