In each of Problems 12 through 23, find all singular points of the given equation and determine whether each one is regular or irregular. 12. xy" +(1-x)y' + xy =0

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Q: C. Evaluate z³e¹/2 dz where C is lz-2| = 1 C. Evaluate $c COSZ dz where Cis |z| = 4.5

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Q: Q2 - Returns on stocks X and Y are listed below: Period    1    2    3    4    5    6    7 Stock X…

A: Mean return of stock x == 8.2857%Mean return of stock y = 3%

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