Can Someone Explain Homework Problems 1(b) and 1(c)?

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The discussion centers on clarifying homework problems 1(b) and 1(c) related to Fourier sine series. The original poster successfully completed problem one but is confused about the subsequent questions. They express difficulty due to the lack of textbook resources, as the course relies solely on lectures. A suggested external link provides additional information on Fourier sine series to aid understanding. Overall, the conversation emphasizes the need for clearer explanations and accessible resources for complex topics.
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Homework Statement


I was able to do number one but can someone help me with 1(b) and 1(c)? I'm not too sure what they're asking.


Homework Equations





The Attempt at a Solution

 

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What is a Fourier sine series? If you don't know, look it up in your textbook.
 
We are not using any books in this class. Everything is based off of lectures only. This is why I am having trouble.
 

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