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Unformatted text preview: ϕ (0) = 0, ϕ ( ± 1 2 ) = ± 1. 1 5. a) How many roots does this equation z 4 + z + 5 = 0 have in the ﬁrst quadrant. b) How many of them have argument between π 4 and π 2 ? 6. Compute Z | z | =1 e z z-n dz, where n is an integer. 7. Show that an isolated singularity of f cannot be a pole of sin f . 2...
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- Spring '09
- Math, Analytic function, φ