Solutions of the Examples in Hall and Knight's Elementary Trigonometry

by Henry Sinclair Hall

Excerpt from Solutions of the Examples in Hall and Knight's Elementary Trigonometry Sin2 0 cot2 0 sin2 0: sin2 0 (1 cotz 0) sin2 0 cosec2 1. (1 tan2 0) (1 sin2 0) sec2 0 cos2 0: 1. Cosec2 9 tan2 0 1 12 81112 0 1 sec2 0 1 tan2 0. Sm 6' cos2 0 First side cos2 A sin2 A 1. First Side sec2 A tan2 1. First Sin A Sin A cos A cos A sin2 A cos2 A 1. First sec A sec A tan A tan A see2 A tan2 A 1. Sin a. Cos4 a (sin2 a cos2 a) (sin2 a cos2 d) sin2 a cos2 a sin2 a (1 sin d) 2 sin2 a 1. Sin2 a cos2a=1 cos2 a cos2a=1 2 cos a. First Side (sec2 (1 1) (sec2 at. Tan2 a. (2 tan2 a). About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

348 pages, Paperback

Published September 22, 2018

About the author

1848-1934