Sum of the \( x \) and \( y \) intercepts of the circle described on the line segment joining \(...

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Sum of the \( x \) and \( y \) intercepts of the circle described on the line segment joining \( (-2,1) \) and \( (1,2) \) as diameter, is
(a) 1
(b) 2
(c) 3
(d) 4
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