Q21·Section II (Mathematics)·21 of 180Complex analysis — where 1/z1/z1/z has a primitiveThe function f(z)=1zf(z)=\dfrac1zf(z)=z1 has primitive in the domain: OptionsA{z∈C∣1<∣z∣<2}\{z\in\mathbf C\mid1<|z|<2\}{z∈C∣1<∣z∣<2}B{z∈C∣∣z∣<2}\{z\in\mathbf C\mid|z|<2\}{z∈C∣∣z∣<2}C{z∈C∣∣z∣>1}\{z\in\mathbf C\mid|z|>1\}{z∈C∣∣z∣>1}D{z=x+iy∈C∣x≥2}\{z=x+iy\in\mathbf C\mid x\ge2\}{z=x+iy∈C∣x≥2}Pick 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