Number:
18031
Author:
Issue:
ET Vol 68, Jun 1915
Tags:
Trigonometry
Solved by:
W.F. Beard, MQ Vol 104
Solved by:
J. Macmillan, MQ Vol 104
Solved by:
C.M. Ross, MQ Vol 104
Solved by:
B.A. Swinden, MQ Vol 104