[" circle of radius "4" .is concentric with the ellipse "3x^(2)+13y^(2)=78" .Prove that a "],[" nmon tangent is inclined to the major axis at an angle "pi/4" ."]

A circle of radius 4, is concentric with the ellipse 3x^(2) + 13y^(2) = 78 . Prove that a common tangent is inclined to the major axis at an angle (pi)/(4)

A circle of radius 4, is concentric with the ellipse 3x^(2) + 13y^(2) = 78 . Prove that a common tangent is inclined to the major axis at an angle (pi)/(4)

A circle of radius 4, is concentric with the elllipse 3x^2+13y^2=78 . Prove that a common tangent is inclined to the major axis at an angle pi/4

A circle of radius r is concentric with the ellipse x^2/a^2 + y^2/b^2 = 1 . Prove that the common tangent is inclined to the major axis at an angle tan^(-1) sqrt((r^2-b^2)/(a^2 - r^2) .

A circle of radius r is concentric with the ellipse (x^2)/(a^(2))+(y^2)/(b^(2))=1 .Then inclination of common tangent with major axis is

A circle of radius 5/sqrt2 is concentric with the ellipse x^(2)/16+y^(2)/9=1 , then the acute angle made by the common tangent with the line sqrt3x-y+6=0 is

A circle of radius 5/sqrt2 is concentric with the ellipse x^(2)/16+y^(2)/9=1 , then the acute angle made by the common tangent with the line sqrt3x-y+6=0 is

If a circle is concentric with the ellipse, find the in­clination of their common tangent to the major axis of the ellipse.

If a circle is concentric with the ellipse, find the in­clination of their common tangent to the major axis of the ellipse.