17." If "z=-5+4i," find the value of "z^(4)+9z^(3)+35z^(2)-z+4

If z = -5 + 3i , find the value of (z^(4)+9z^(3)+26z^(2)-14z + 8) .

If z=3-2i then show that z^(2)-6z+13=0 Hence find the value of z^(4)-4z^(3)+6z^(2)-4z+17

If z = i(i + sqrt(2)) , then value of z^(4) + 4z^(3) + 6z^(2) + 4z is

If z=4+i sqrt(7), then find the value of z^(2)-4z^(2)-9z+91

z=i^5 then the value of (z+z^2+z^3+z^4)

If z=4+isqrt(7) , then find the value of z^2-4z^2-9z+91.

If z=4+isqrt(7) , then find the value of z^2-4z^2-9z+91.

If z=4+i sqrt(7) then the value of Z^(3)-4Z^(2)-9z+91 equal

If |z_(1)| = 1, |z_(2)| =2, |z_(3)|=3, and |9z_(1)z_(2) + 4z_(1)z_(3)+ z_(2)z_(3)|= 12 , then find the value of |z_(1) + z_(2) + z_(3)| .

If |z_(1)| = 1, |z_(2)| =2, |z_(3)|=3, and |9z_(1)z_(2) + 4z_(1)z_(3)+z_(2)z_(3)|= 12 , then find the value of |z_(1) + z_(2) + z_(3)| .