MathematicsHard53×since 2002Q3229For a∈Ca \in \mathbb{C}a∈C, let A={z∈C:Re(a+zˉ)>Im(aˉ+z)}\mathrm{A}=\{z \in \mathbb{C}: \operatorname{Re}(a+\bar{z}) > \operatorname{Im}(\bar{a}+z)\}A={z∈C:Re(a+zˉ)>Im(aˉ+z)} and B={z∈C:Re(a+zˉ)<Im(aˉ+z)}\mathrm{B}=\{z \in \mathbb{C}: \operatorname{Re}(a+\bar{z})<\operatorname{Im}(\bar{a}+z)\}B={z∈C:Re(a+zˉ)<Im(aˉ+z)}. Then among the two statements : (S1): If Re(a),Im(a)>0\operatorname{Re}(a), \operatorname{Im}(a) > 0Re(a),Im(a)>0, then the set A contains all the real numbers (S2) : If Re(a),Im(a)<0\operatorname{Re}(a), \operatorname{Im}(a) < 0Re(a),Im(a)<0, then the set B contains all the real numbers,Aboth are falseBonly (S1) is trueConly (S2) is trueDboth are trueCheck answerSkip