Find the condition for the line
lx+my+n=0 to be a normal to the ellipse `x^2/a^2+y^2/b^2=1`

Find the condition for the line lx+my+n=0 to be a tangent to the ellipse x^2/a^2+y^2/b^2=1

Find the condition that the line lx + my = n may be a normal to the ellipse x^(2)/(a^(2)) + y^(2)/b^(2) =1

The line lx+my=n is a normal to the ellipse x^(2)/a^(2)+y^(2)/b^(2)=1

The line lx+my=n is a normal to the ellipse x^(2)/a^(2)+y^(2)/b^(2)=1

The condition that the line lx + my + n= 0 to be a normal to the ellipse (x^(2))/(a^(2)) + (y^(2))/(b^(2))= 1 is

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

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

Find the coodition that the straight line lx+my+n=0 is a normal to the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1

The line lx+my=n is a normal to the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1, if

Find the condition that line lx + my - n = 0 will be a normal to the hyperbola x^(2)/a^(2) - y^(2)/b^(2) = 1 .