Let the lines (2-i)z=(2+i) barz and (2+i...

Let the lines `(2-i)z=(2+i) barz` and `(2+i)z+(i-2)barz-4i=0`, (here `i^(2)= -1`) be normal to a circle C. If the line `iz+barz+1+i=0` is tangent to this circle C, then its radius is :

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Let the lines `(2-i)z=(2+i) barz` and `(2+i)z+(i-2)barz-4i=0`, (here `i^(2)= -1`) be normal to a circle C. If the line `iz+barz+1+i=0` is tangent to this circle C, then its radius is :

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