Prove that the straight line lx+my+n=0 touches the parabols `y^2=4ax`, if `ln=am^2`.

Prove that the straight line x+y=1 touches the parabola y=x-x^(2)

If the line lx+my+n=0 touches the parabola y^(2)=4ax, prove that ln=am^(2)

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

The straight line lx+my+n=0 will touch the parabola y^2 = 4px if (A) lm^2 = np (B) mn=pl^2 (C) pn^2 = lm (D) none of these

The line lx+my+n=0 touches y^(2)=4ax

The pole of the line lx+my+n=0 with respect to the parabola y^(2)=4ax, is

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

The line among the following that touches the parabola y^(2)=4ax is