Q20·Section II (Mathematics)·20 of 190A third-order pole hiding behind an apparent double zeroConsider the function f(z)=1z2sinzf(z)=\dfrac1{z^2\sin z}f(z)=z2sinz1. Then: OptionsAfff has a pole of order 1 at z=0z=0z=0Bfff has a pole of order 2 at z=0z=0z=0Cthe residue of fff at z=0z=0z=0 is 1/31/31/3Dthe residue of fff at z=0z=0z=0 is 1/61/61/6Pick an option to check your answer.Show answerShow solution Report a problem with this question← Q19All questionsQ21 →Keyboard: A–D answer · S solution · ←/→ previous/next