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Question ID 6100 (Universal ID 1475152519768263)

This question was written by dahn,Ingo, mb Dahn,Ingo, derived from work by Gaa,Julia; dahn,Ingo, mb Dahn,Ingo. This work is licensed under the IMathAS Community License (GPL + CC-BY).
The code that generated this question can be obtained by instructors by emailing dahn@vcrp.de.