Wow! eBook
Elements of Plane Trigonometry
Author(s): Hugh Blackburn M.A. (Author)
- Publisher: CreateSpace Independent Publishing Platform
- Publication Date: 13 Aug. 2016
- Language: English
- Print length: 132 pages
- ISBN-10: 1537085247
- ISBN-13: 9781537085241
Book Description
The succeeding chapters are devoted to an exposition of the nature of the trigonometrical ratios, and to the demonstration by geometrical constructions of the principal propositions in trigonometrical surveying: and I have concluded with a proof of the formulae for the sine and cosine of the sum of two angles treated as examples of the elementary theory of projection. Having learned thus much the student has gained a knowledge of trigonometry as originally understood, and may apply his knowledge in surveying; and he has also reached a point from which he may advance into analytical trigonometry and its use in natural philosophy.
