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Homework Assignment 9

Assigned Tuesday November 9; due Friday November 19, 2PM, at SS 1071

this document in PDF: HW.pdf

Required reading. All of Spivak's Chapters 9 and 10.

To be handed in. From Spivak Chapter 9: 1, 9, 15, 23. From Spivak Chapter 10: 2 (parts 1, 4, 7, 10, 13, 16), 6 (odd parts).

Recommended for extra practice. From Spivak Chapter 9: 8, 11, 21, 28. From Spivak Chapter 10: 2 (all other parts), 6 (even parts).

Just for fun. I took the following picture of the paper handed out by the airline, aboard Air Canada flight 800 to Boston two years ago:

Economic Growth Seen Slowing

Denote by $ E(t)$ the overall size of the Canadian economy at time $ t$. Can you translate the headline above to a simple statement about a certain derivative of $ E(t)$? Plot the graph of $ E(t)$ to the best of your understanding given the information in the headline.

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Dror Bar-Natan 2004-11-08