If the greatest valueof `|z| ` such that `|z-3-4i|lea` is equal to the least value of `(x^4+x^2+ 5)/x i n(0,oo) then a=` (A) 1 (B) 4 (C) 3 (D) 2

Least value of |z-2|+|z-4i| is

If |z-4+3i|le3, then the least value of |z|= (A) 2 (B) 3 (C) 4 (D) 5

If |z-4+3i|<=1 and m and n be the least and greatest values of |z| and K be the least value of (x^(4)+x^(2)+4)/(x) on the interval (0,oo), then K=

Let |z-5+12i|<=1 and the least and greatest values of |z| are m and n and if 1be the least positive value of (x^(2)+24x+1)/(x) then lis

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 theta is the angel between the planes 2x-y+z-1=0 and x-2y+z+2=0 then costheta= (A) 2/3 (B) 3/4 (C) 4/5 (D) 5/6

If z=2-i sqrt(3) then z^(4)-4z^(2)+8z+35 is (A) 6(B)0(C)1 (D) 2