Q21·Section II (Mathematics)·21 of 180Complex analysis — modulus of an exponentialFor a complex number zzz, ∣e−iz∣>1|e^{-iz}|>1∣e−iz∣>1 holds if: OptionsARez>0\operatorname{Re}z>0Rez>0BRez<0\operatorname{Re}z<0Rez<0CImz>0\operatorname{Im}z>0Imz>0DImz<0\operatorname{Im}z<0Imz<0Pick an option to check your answer.Show answerShow solution Report a problem with this question← Q20All questionsQ22 →Keyboard: A–D answer · S solution · ←/→ previous/next