PLANE AND SPHERICAL

TRIGONOMETRY

D. A. MURRAY, B. A., PH.D.

Маг

PLANE TRIGONOMETRY

FOR

COLLEGES AND SECONDARY SCHOOLS

BY

DANIEL A. MURRAY, PH.D. (JOHNS HOPKINS)

PROFESSOR OF MATHEMATICS IN DALHOUSIE COLlege,

HALIFAX, N.S.

NEW YOR
PUBLIC

LONGMANS, GREEN, AND CO.

91 AND 93 FIFTH AVENUE, NEW YORK