Previous
Next
Number:
16727
Author:
H.L. Trachtenberg
Issue:
ET Vol 62, Sep 1909
Tags:
Conics (general)
Solved by:
W.F. Beard, MQ Vol 93
Solved by:
A.H.S. Gillson, MQ Vol 93
Solved by:
E.J. Nanson, MQ Vol 93