MathematicsMedium53×since 2002Q3220If a > 0 and z = (1+i)2a−i{{{{\left( {1 + i} \right)}^2}} \over {a - i}}a−i(1+i)2, has magnitude 25\sqrt {{2 \over 5}}52, then z‾\overline zz is equal to :A−15+35i- {1 \over 5} + {3 \over 5}i−51+53iB−15−35i- {1 \over 5} - {3 \over 5}i−51−53iC15−35i{1 \over 5} - {3 \over 5}i51−53iD−35−15i- {3 \over 5} - {1 \over 5}i−53−51iCheck answerSkip