Q3·Section I (General (compulsory))·3 of 190The two-branch characterization of zw,z+w∈Rzw, z+w\in\mathbb{R}zw,z+w∈RLet z,wz,wz,w be two complex numbers such that zw∈Rzw\in\mathbb{R}zw∈R and z+w∈Rz+w\in\mathbb{R}z+w∈R. Then: OptionsAz=wz=wz=wBz=w‾z=\overline wz=wCz,w∈Rz,w\in\mathbb{R}z,w∈RDz=w‾z=\overline wz=w or z,w∈Rz,w\in\mathbb{R}z,w∈RPick an option to check your answer.Show answerShow solution Report a problem with this question← Q2All questionsQ4 →Keyboard: A–D answer · S solution · ←/→ previous/next