If the straight line `lx + my=1` is a normal to the parabola `y^(2)=4ax`, then-

The line lx+my+n=0 is a normal to the parabola y^(2)=4ax if

If the striaht line lx+my=1 is a normal to the parbaola y^(2)=4ax then show that, al^(3)+2alm^(2)=m^(2)

The line 1x+my+n=0 is a normal to the parabola y^(2)=4ax if :

The line lx+my+n=0 is a normal to the parabola y^2 = 4ax if

If the straight line 3x+4y+1=0 is a normal to the parabola y^(2)+lambda x=0 ,then distance between focus and directrix of the parabola is

If the line y=mx+c is a normal to the parabola y^2=4ax , then c is

If the line y=mx+c is a normal to the parabola y^2=4ax , then c is

If the line lx + my +n=0 is a tangent to the parabola y^(2)= 4ax , then-

Find the condition for the straight line lx+my+n=0 to be a tangent to the parabola y^(2)=4ax and find the coordinates of the point of contact.