[" If "z=1+cos((8 pi)/(5))+i sin((8 pi)/(5))," then "],[" the principal value of argument of "z" is (where "],[i=sqrt(-1))]

If z=1+cos((pi)/(5))+i sin((pi)/(5)) then sin(argz) is equal to

Principal argument of z=-1-i sqrt(3)

z=(1-i)/(cos(pi/3)+i sin(pi/3))

z = (1+cos6 pi)+i sin6 pi

If z=sqrt(3)-2+i , then principal value of argument z is (where i=sqrt(-1) (1) -(5pi)/(12) (2) pi/(12) (3) (7pi)/(12) (4) (5pi)/(12)

Let z=1-sin alpha+i cos alpha where alpha varepsilon(0,(pi)/(2)) then the modulus and principle value of the argument of z are respectively

If z=sqrt(3)-2+i, then principal value of argument z is (where i=sqrt(-1)-(5 pi)/(12)(2)(pi)/(12) (3) (7 pi)/(12) (4) (5 pi)/(12)

Find the argument and the principal value of the argument of the complex number z=(2+i)/(4i+(1+i)^(2)) where i=sqrt(-1)

If z= cos((8pi)/11)+isin((8pi)/11),i=sqrt(-1) then the value of Re(z+z^2+z^3+z^4+z^5) is lambda then 20lambda^2 =