Given a triangle ABC , draw a line from the vertex C to the hypotenuse, which is perpendicular to the hypotenuse at point H . A circle of radius r is inscribed in the triangle . Two more circles of radi r_{1}and r_{2}are inscribed between the triangle ,the line CH and the circle r. Find r_{1}in terms of r and b= AC , and r_{2}in terms of r and a=BC

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