The argument of the complex number 2+3i(3+i)(1+2i)2 is equal to
The argument of complex number Z = 3+i2i+(1+i)2
The principle argument of the complex number −1−√3i is
The principal argument of the complex number 2+i4i+(1+i)2, ( where i=√−1) is
In a ΔABC of A −tan−1 and B =tan−13 then C is equal to