imaginary and real parts

[dopey9]

i have an equation

z = -(4 +2i)*ln(x+iy)

where i imaginary

iv been trying to split the equation into two parts...imaginary and real parts...with z as the subject of the equation..but i cant seem to do it..can any one help thankz

 

[pka]

What is the complete question?

\(\displaystyle \L\log (x + iy) = \ln \left( {\left| {x + iy} \right|} \right) + i\left( {Arg(x + iy) + 2k\pi } \right)\)

 

[dopey9]

What is the complete question?

\(\displaystyle \L\log (x + iy) = \ln \left( {\left| {x + iy} \right|} \right) + i\left( {Arg(x + iy) + 2k\pi } \right)\)

Thanks for the help but i found out the answer