The angle between the tangents at any point P and the line joining P to origin O, where P is a point on the curve `"1n" (x^(2) + y^(2)) = c tan^(-1) y//x, c` is a constant, is

Options

A. (a) constant
B. (b) varies at `tan^(-1) (x)`
C. (c)varies as `tan^(-1) (y)`
D. (c) none of these

Answer

A