Math 487 – Section 01
Spring 2011
Extra Credit Assignment #3
(5 points)
Due: Tuesday, May 3rd, 2011 by 4:00pm
Finish the proof of Theorem 4.13 in your textbook by proving that H(ab,cd) is a harmonic set of lines.
Recall that you wrote out the definition of a harmonic set of lines in homework exercise 4.21
You can use Dr. Peil’s argument in the online textbook as a starting point, but make sure to fill in the details yourself.
Math 487 – Section
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