Attacking Trigonometry Problems, , Dover Publications, David S. Kahn,Trigonometry,Geometry, non-fiction;mathematical studies;books on math;math;trigonometry;mathematics;trig;trigonometry books;learning trigonometry;lengths and angles of triangles;geometry to astronomical studies;foundation of surveying;trigonometric functions;fourier transform;for example;the wave equation;cyclical phenomena;planar right-angle triangles;cosine graph;cotangent;degrees to radians;Mathematics; Trigonometry; Trigonometry problems; Math test preparation; Trigonometry review,, Dover Books on Mathematics, United States, en-UShttps://www.doverpublications.comnon-fiction;mathematical studies;books on math;math;trigonometry;mathematics;trig;trigonometry books;learning trigonometry;lengths and angles of triangles;geometry to astronomical studies;foundation of surveying;trigonometric functions;fourier transform;for example;the wave equation;cyclical phenomena;planar right-angle triangles;cosine graph;cotangent;degrees to radians;Mathematics; Trigonometry; Trigonometry problems; Math test preparation; Trigonometry review, [BLURB],[CITY],New York,books, ebooks, biblet, Book2look