List of top Mathematics Questions on Parabola asked in AP EAMCET

If \(ax+by=1\) is a normal to the parabola
\[ y^2=4px, \] then the condition is
Suppose a parabola with focus at \((0,0)\) has
\[ x-y+1=0 \] as its tangent at the vertex. Then the equation of its directrix is