If `z_1 and z_2` are `1-i and -2+4i` respectively find `Im ((z_1z_2)/barz_1)`

(1) Re((z1z2)/(barz1))

if z_(1)=1-i and z_(2) = -2 + 4i then find Im((z_(1)z_(2))/barz_(1))

if z_(1) = 3-i and z_(2) = -3 +i, then find Re ((z_(1)z_(2))/(barz_(1)))

If z_1 and z_2 lies on |z|=9 and |z-3-4i|=4 respectively, find minimum possible value of |z_1 -z_2| (A) 0 (B) 5 (C) 13 (D) 2

If z_1=2-i ,\ z_2=-2+i , find : R e((z_1z_2)/bar(z_1))

If z_(1) = 1 +iand z_(2) = -3+2i then lm ((z_(1)z_(2))/barz_(1)) is

If z_(1) = 4 -I and z_(2) = - 3 + 7i then find (i) z_(1) +z_(2) (ii) z_(1) -z_(2)

If Z_(1)=2 + 3i and z_(2) = -1 + 2i then find (i) z_(1) +z_(2) (ii) z_(1) -z_(2) (iii) z_(1).z_(2) (iv) z_(1)/z_(2)

If z_(1)=3 -2i ,z_(2) = 2-i and z_(3) = 2+ 5i then find z_(1) + z_(2) - 2z_(3)

if z_(1) =-1 + 3i and z_(2)= 2 + i then find 2(z_(1) +z_(2))