If `(5z_(2))/(7z_(1))` is purely imaginary, then `|(2z_(1)+3z_(2))/(2z_(1)-3z_(2))|`, is equal to

If (2z_(1))/(3z_(2)) is purely imaginary number, then |(z_(1)-z_(2))/(z_(1)+z_(2))|^(4) is equal to

if (5z_2)/(7z_1) is purely imaginary number then |(2z_1+3z_2)/(2z_1-3z_2) | is equal to

If (5z_2)/(7z_1) is purely imaginary, then |(2z_1+3z_2)/(2z_1-3z_2)|= (A) 5/7 (B) 7/9 (C) 25/49 (D) 1

If z_1, z_2 are complex number such that (2z_1)/(3z_2) is purely imaginary number, then find |(z_1-z_2)/(z_1+z_2)| .

If z_1, z_2 are complex number such that (2z_1)/(3z_2) is purely imaginary number, then find |(z_1-z_2)/(z_1+z_2)| .

Column I, Column II (Locus) parallelogram, p. z_1-z_4=z_2-z_3 rectangle, q. |z_1-z_(3|)=|z_2-z_(4|) rhombus, r. (z_1-z_2)/(z_3-z_4) is purely real square, s. (z_1-z_3)/(z_2-z_4) is purely imaginary , t. (z_1-z_2)/(z_3-z_2) is purely imaginary

if z_(1)=3+i and z_(2) = 2-i, " then" |(z_(1) +z_(2)-1)/(z_(1) -z_(2)+i)| is

If 2z_1//3z_2 is a purely imaginary number, then find the value of "|"(z_1-z_2")"//(z_1+z_2)|dot

If 2z_1//3z_2 is a purely imaginary number, then find the value of "|"(z_1-z_2")"//(z_1+z_2)|dot

If the triangle fromed by complex numbers z_(1), z_(2) and z_(3) is equilateral then prove that (z_(2) + z_(3) -2z_(1))/(z_(3) - z_(2)) is purely imaginary number