Math Chapter Wise Complex Integration, Cauchy's Theorem And Calculus Of Residue English MCQ KVS PGT 23-12-2018 Q.Singularity of 1 f(z) sin 1 z = − at z 1 = is: Aisolated singularity Bessential singularity Cisolated essential singularity Dnon-isolated essential singularity Show answer Correct answer: isolated essential singularity