![(MON 5)](/media/m/7/7/8/778eb420c739bb523c95e2b6b021b3bd.png)
Find the radius of the circle circumscribed about the isosceles triangle whose sides are the solutions of the equation
![x^2 - ax + b = 0](/media/m/f/0/a/f0ac836018b30dcb7c7c99311f565572.png)
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$(MON 5)$ Find the radius of the circle circumscribed about the isosceles triangle whose sides are the solutions of the equation $x^2 - ax + b = 0$.