Question 991185
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21 if there is one at the start and finish, 20 if there isn't one at the start, but there is at the finish, and 19 if there isn't one at either the start or the finish.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \