The argument of the complex number `(2+3i)/((3+i)+(1+2i)^(2))` is equal to

The argument of the complex number (1 +i)^(4) is

(1+2i)/(1+3i) is equal to

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)

The modulus and principle argument of the complex number (1+2i)/(1-(1-i)^(2) are respectively