PLANE AND SPHERICAL

TRIGONOMETRY

WITH

TABLES

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

6

PLANE TRIGONOMETRY

FOR

COLLEGES AND SECONDARY SCHOOLS

BY

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

PROFESSOR OF MATHEMATICS IN DALHOUSIE COLLEGE,
HALIFAX, N.S.

LONGMANS, GREEN, AND CO.

91 AND 93 FIFTH AVENUE, NEW YORK

LONDON AND BOMBAY