Question 917686
a) Complex conjugate m*=5-2i
b) {{{m^2=m*m}}}
{{{m^2=(5+2i)(5+2i)}}}
{{{m^2=25+10i+10i+4i^2}}}
{{{m^2=25+20i-4}}}
{{{m^2=21+20i}}}
c) m m*={{{(5+2i)(5-2i)}}}
m m*={{{25-10i+10i-4i^2}}}
m m*={{{25+4}}}
m m*={{{29}}}