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PLANE TRIGONOMETRY.

Cambridge:

PRINTED BY C. J. CLAY, M.A.

AT THE UNIVERSITY PRESS.

PLANE TRIGONOMETRY

For the Use of Colleges and Schools.

WITH NUMEROUS EXAMPLES.

BY

I. TODHUNTER, M.A.

FELLOW AND PRINCIPAL MATHEMATICAL LECTURER OF ST JOHN'S COLLEGE,

CAMBRIDGE.

SECOND EDITION, REVISED.

MACMILLAN AND CO.

Cambridge:

AND 23, HENRIETTA STREET, COVENT GARDEN,

London.
1860.

[The right of Translation is reserved.]

183. c. 35.

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PREFACE.

THE present work contains all the propositions which are usually included in treatises on Plane Trigonometry, together with more than six hundred examples for exercise. The design has been to render the subject intelligible to beginners, and at the same time to afford the student the opportunity of obtaining all the information which he will require on this branch of Mathematics. The work is divided into a large number of chapters, each of which is in a great measure complete in itself. Thus it will be easy for teachers to select for pupils such portions as will be suitable for them in their first reading of the book. Each chapter is followed by a set of examples; those which are entitled Miscellaneous Examples, together with a few in some of the other sets, may be advantageously reserved by the student for exercise after he has made some progress in the subject.

As the text and the examples of the present work have been tested by considerable experience in teaching, the hope may be entertained that they will be suitable for imparting a sound and comprehensive knowledge of Plane Trigonometry, together with readiness in the application of this knowledge to the solution of problems. Any suggestions or corrections from students and teachers will be most thankfully received.

ST. JOHN'S COLLEGE,

Feb. 21, 1859.

I. TODHUNTER.

In the second edition the work has been revised, and the hints for the solution of the examples have been considerably increased.

December, 1860.

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