Neither trigonometry nor any other subject can be used to prove questions. It may be possible to answer questions but that is another matter,
There are no hindrances. If you put your mind to it, any subject can be mastered.
The subject has not concluded: there are still aspects of it that can be developed so it is premature to talk about the conclusion of the subject.
No one in particular because trigonometry has evolved over thousands of years with many ancient and modern mathematicians making their own discoveries and contributions to the subject.
plane trigonometry spherical trigonometry
Theology, Trigonometry, and Typing.
John W. Coburn has written: 'Algebra and trigonometry' -- subject(s): Textbooks, Algebras, Trigonometry 'Trigonometry' -- subject(s): Textbooks, Trigonometry 'Student Solutions Manual to accompany Precalculus' 'Precalculus' -- subject(s): Functions, Trigonometry 'College algebra essentials' -- subject(s): Textbooks, Algebra
No, because trigonometry is a big subject: there are many formulae.
David A. Kay has written: 'The new nations in the United Nations, 1960-1967' -- subject(s): United Nations 'Trigonometry' -- subject(s): Outlines, syllabi, Trigonometry 'CliffsQuickReview trigonometry' -- subject(s): Mathematics, Nonfiction, Outlines, syllabi, OverDrive, Problems, exercises, Trigonometry
Karl Bachman Patterson has written: 'Plane trigonometry' -- subject(s): Plane trigonometry, Problems, exercises, Trigonometry 'Analytic geometry' -- subject(s): Analytic Geometry
Walter A. Albrecht has written: 'Essentials of trigonometry' -- subject(s): Trigonometry
Earl William Swokowski has written: 'Fundamentals of Algebra & Trignometry' 'Functions and graphs' -- subject(s): Graphic methods, Functions, Trigonometry, Algebra 'Algebra and trigonometry' -- subject(s): Plane trigonometry, Algebra 'Psm Fundamentals of Algebra & Trigonometry' 'Fundamentals of trigonometry' -- subject(s): Analytic Geometry, Geometry, Analytic, Plane Trignometry, Plane trigonometry, Trignometry, Plane 'Fundamentals of college algebra' -- subject(s): Textbooks, Algebra 'Laboratories Using Mathematica - Calculu' 'S.G. Volume 2 - Calculus' 'Calculus (Calculus)' 'Calculus/Late Trigonometry Version' 'Mac Maple Notebook - Calculus' 'Fund of Trigonometry - Study Guide/Pssm' 'Calculus' -- subject(s): Analytic Geometry, Calculus 'Precalculus' -- subject(s): Algebra, Graphic methods, Functions, Trigonometry, Plane trigonometry 'Fundamentals of college algebra' -- subject(s): Textbooks, Algebra 'Psm - Precalc' 'Calculus 7e' 'Theorist Notebook - Calculus 6e'
Walter Fleming has written: 'Plane trigonometry' -- subject(s): Plane trigonometry 'Precalculus mathematics' -- subject(s): Mathematics, Precalculus
Cynthia Y. Young has written: 'Trigonometry' -- subject(s): Textbooks, Trigonometry 'Trigonometry, Student Solutions Manual' 'Algebra and Trigonometry with Limits' 'College Algebra Sampler' 'Trigonometry, Digital Videos (Digital Video Tutor)' 'College Algebra 1st Edition with Digital Videos Set' 'Trigonometry with Digital Videos Set' 'College algebra' -- subject(s): Algebra, Textbooks
Sarah Elizabeth Ferguson has written: 'Trigonometry in action' -- subject(s): Trigonometry
John B. Clarke has written: 'Manual of trigonometry ..' -- subject(s): Trigonometry
Richard Burroughs has written: 'A treatise on trigonometry & navigation' -- subject(s): Navigation, Trigonometry