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

If z= 2- isqrt(3) then |z^(4)| is equal to

If z=2-isqrt(7) , then show that 3z^(3)-4z^(2)+z+88=0

If |z_1=1,|z_2|=2,|z_3|=3 and |z_1+z_2+z_3|=1, then |9z_1z_2+4z_3z_1+z_2z_3| is equal to (A) 3 (B) 36 (C) 216 (D) 1296

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

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.

Z=-5+4i then Z^4 +9Z^3 +35Z^2 – Z + 4 =

If z_1,z_2,z_3,z_4 be the vertices of a quadrilaterla taken in order such that z_1+z_2-z_2+z_3 and |z_1-z_3|=|z_2-z_4| then arg ((z_1-z_2)/(z_3-z_2))= (A) pi/2 (B) +- pi/2 (C) pi/3 (D) pi/6

If z_1,z_2,z_3,z_4 be the vertices of a quadrilaterla taken in order such that z_1+z_2=z_2+z_3 and |z_1-z_3|=|z_2-z_4| then arg ((z_1-z_2)/(z_3-z_2))= (A) pi/2 (B) +- pi/2 (C) pi/3 (D) pi/6

If z=(-2)/(1+isqrt(3)) , then the value of "arg"(z) is a. pi b. pi/4 c. pi/3 d. (2pi)/3