Number:
15889
Author:
Issue:
ET Vol 58, Nov 1905
Tags:
Conic Sections (parabolas, ellipses, hyperbolas)
Solved by:
S. Ganguli, MQ Vol 85
Solved by:
F.W. Reeves, MQ Vol 85
Solved by:
H.L. Trachtenberg, MQ Vol 85