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Number:
16070
Author:
Cymro
Issue:
ET Vol 59, Sep 1906
Tags:
Conic Sections (parabolas, ellipses, hyperbolas)
Solved by:
W.F. Beard, MQ Vol 87
Solved by:
R.F. Davis, MQ Vol 87
Solved by:
Henry Riddell, MQ Vol 86