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

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),z_(2) are respectively 1-i,-2+4i, find I_(m){(z_(1)z_(2))/(z_(1))} .

If z_(1) = (1+i) and z_(2) = (-2 + 4i) , prove that Im ((z_(1)z_(2))/(bar(z)_(1)))=2 .

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

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

If z_1 = 3i and z_2 = -1 -i , find the value of arg z_1/z_2 .

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