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Consider a circle x^2 + y^2 = a^2 and a ...

Consider a circle `x^2 + y^2 = a^2` and a point P on it in `1^(st)` quadrant. Another circle is drawn concentric with the given circle and radius is on the x-co-ordinate of point P. This circle intersects positive x-axis at line OP at R (where 0 is the origin). If angle subtended by arc QR at origin is `lim_(theta -> 0) (Length of arc QR)/theta^n =1` (where `l` is a non zero finite quantity , `n != 0`) then the value of `(a+n+l)` for `b=1` is equal to

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