If `|z-4/z|=2` then the greatest value of `|z|` is (A) `sqrt(5)-1` (B) `sqrt(5)+1` (C) `sqrt(5)` (D) 2

If |z+2i|<=2, then the greatest value of |z-sqrt(3)+i|

If |z+2i|<=2, then the greatest value of |z-sqrt(3)+i|

If |z-4/2z|=2 then the least of |z| is (A) sqrt)5)=-1 (B) sqrt(5)-2 (C) sqrt(5) (D) 2

If |z+2i|<=2, then then the greatest value of |z-sqrt(3)+i| is

If |z-2-3i|=1 ,then the greatest value of |z| is sqrt(k)+m, then evaluate sqrt((k+m)+2)

If |z-(4)/(z)|=2, then the maximum value of |Z| is equal to (1)sqrt(3)+1 (2) (3) 2(4)quad 2+sqrt(2)

The distance of the point (1,-5,9) from the plane x-y+z=5 measured along a straighat line x=y=z is (A) 5sqrt(3) (B) 3sqrt(10) (C) 3sqrt(5) (D) 10sqrt(3)

If |z^(2)-3|=3|z|, then the maximum value of |z| is a.1b.(3+sqrt(21))/(2)c.(sqrt(21)-3)/(2)d .none of these

If a and b are two real number lying between 0 and 1 such that z_1=a+i, z_2=1+bi and z_3=0 form an equilateral triangle , then (A) a=2+sqrt(3) (B) b=4-sqrt(3) (C) a=b=2-sqrt(3) (D) a=2,b=sqrt(3)