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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