cos z Find the Laurent expansion for /(2) = expanded in powers of (z+). (4) (a) Find the residue of /(z) evaluated at the point of non-analyticity. (b) Show the fourth non-zero term. (c) Express /(2) in sigma notation. Please show all work clearly. Put a circle around significant findings. Leave factorials as factorials. Please put a rectangle around your answers. 19) Cos 2 (2)

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