Maximum number of common normals of `y^2=4ax and x^2=4by` is ____

The number of real common normals of y^(2)=4x and x^(2)=4y that can be drawn is equal to

Total number of common tangents of y^(2) = 4ax " and " xy = c^(2) is / are

The total number of common tangents to the curve y^(2)=4ax and x^(2)+y^(2)-2ax=0 is

The equation of a common tangent of the parabolas y^(2)=4ax and x^(2)=4by is

The equation of the common tangent to the parabolas y^(2)=4ax and x^(2)=4by is given by

Set of values of 'h' for which the number of distinct common normals of (x-2)^(2)=4(y-3) and x^(2)+y^(2)-2x-hy-c=0(cgt0)" is 3, is"

Find the equation of the common tangent of y^(2)=4ax and x^(2)=4ay.