Plane Trigonometry

ISBN: 9781332601882 出版年：2016 页码：529 S L Loney Forgotten Books

As Trigonometry consists largely of formulae and the applications thereof, I have prefixed (on pages x to xvi) a list of the principal formula which the student Should commit to memory. These more important formu lee are distinguished in the text by the use of thick type. Other formula are subsidiary and of less importance.