Geometry -- Plane trigonometry -- Natural trigonometric functions -- Logarithmic trigonometric functions
Algebra And Trigonometry OP Hyusk 2 X : Free Download, Borrow, and Streaming : Internet Archive
Geometry and trigonometry : International Correspondence Schools : Free Download, Borrow, and Streaming : Internet Archive
Elements of geometry, conic sections, and plane trigonometry : Elias Loomis : Free Download, Borrow, and Streaming : Internet Archive
How are math symbols invented, and how did they come to be today? - Quora
EUCLIDEANXGEOX9Q8818HX7561FX : Free Download, Borrow, and Streaming : Internet Archive
A school geometry. containing the substance of Euclid books II anfd III and part of book IV : Hall, H. S. (Henry Sinclair), 1848-1934 : Free Download, Borrow, and Streaming : Internet Archive
Towards an Institutional Epistemology
Rethinking Mathematics, PDF, Curriculum
Elements of Geometry, Plane and Spherical Trigonometry and Conic Sections : Horatio Nelson Robinson : Free Download, Borrow, and Streaming : Internet Archive
Introduction To TRIGONOMERTRY : İlker Tantürk : Free Download, Borrow, and Streaming : Internet Archive
College geometry : an introduction to the modern geometry of the triangle and the circle : New York : Barnes & Noble : Free Download, Borrow, and Streaming : Internet Archive