Summary: Test Two Answer Key Mathematics 114.01 Spring 2005
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The average was 45.8. The standard deviation was 16.71.
1. 5 points. Let f(z) = sin z/z for z C {0}. Is 0 a removable singularity?
Solution. We have
sin z/z =
1
z
z -
z3
3!
+
z5
5!
- · · · = 1 -
z2
3!
+
z2
5!

Source: Allard, William K. - Department of Mathematics, Duke University

Collections: Mathematics