Number:
17231
Author:
Issue:
ET Vol 65, Jan 1912
Tags:
Conic Sections (parabolas, ellipses, hyperbolas)
Solved by:
R.F. Davis, MQ Vol 98
Solved by:
A.M. Nesbitt, MQ Vol 98
Solved by:
P.T. Stephenson, MQ Vol 98
Solved by:
C.E. Youngman, MQ Vol 98