Let the lines (2-i)z=(2+i) z and (2+i)z+(i-2) z-4i=0, (here i^2=–1) be normal to a circle C. If the line iz +...

Question

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

Accepted Answer

(D)

JEE Main 2021 Mathematics question

Solution