The slope of common tangents to `x^(2)+4y^(2)=4` and `x^(2)+y^(2)=3` is `m` ,then `m^(2)` is

The common tangent of x^(2)+y^(2)=4 and 2x^(2)+y^(2)=2 is

The number of common tangents to x^(2)+y^(2)=256 (x-3)^(2)+(y-4)^(2)=121 is

The number of common tangents to x^(2)+y^(2)=256 (x-3)^(2)+(y-4)^(2)=121 is

The number of common tangents to x^(2)+y^(2)=256 , (x-3)^(2)+(y-4)^(2)=121 is

A common tangent to the conics x^(2)=6y and 2x^(2)-4y^(2)=9 is

The equations of the common'tangents to y^(2)=4x and 3x^(2)-4y^(2)=12 are

A common tangent to the circles x^(2)+y^(2)=4 and (x-3)^(2)+y^(2)=1 , is

" The number of common tangents to "x^(2)+y^(2)=256,(x-3)^(2)+(y-4)^(2)=121" is "

If m is the slope of a common tangent of the parabola y^(2)=16x and the circle x^(2)+y^(2)=8 , then m^(2) is equal to