Add to ORKG9 pages, 1 article*3-D Geometry: A Triangle-Oriented Proof of the Cosine of the Angle Between Two Vectors* (Searle, Shayle R.) 9 page
The Pythagorean Theorem relates the sides of a right triangle. The Law of Cosines is a generalizatio...
Summary. The usual ambiguities in ordinary treatment of angles in Euclidean plane geometry are remov...
The theme of this work is an angle in the history of mankind. The introductory part of the work is d...
The well-established formula for the cosine of the angle between two vectors in 3-dimensional space ...
Componente Curricular::Ensino Médio::MatemáticaThe Law of Cosines relates the three side lengths of ...
Componente Curricular::Ensino Médio::MatemáticaThe Law of Cosines relates the three side lengths of ...
summary:Many propositions about triangles are discussed in the school mathematics. There are formula...
summary:Many propositions about triangles are discussed in the school mathematics. There are formula...
This screencast gives explanation of two rules for finding unknown angles and/ or lengths of sides i...
This paper presents eleven different methods for proving addition formulas for trigonometric functio...
summary:In the first part of the article the proof of the following theorem is given: Let point $S$ ...
There are four categories of oblique triangles that can be solved and whose names express what is kn...
In school, I had to memorize the values of sine and cosine at the angles 0, 30, 45, 60, and 90 degre...
ABSTRACT The present article extends the applicability of the angle sum and difference identity rul...
The double-angle formula for sine states that sin(2x) = 2sin(x)cos(x). Computing the area of a trian...
The Pythagorean Theorem relates the sides of a right triangle. The Law of Cosines is a generalizatio...
Summary. The usual ambiguities in ordinary treatment of angles in Euclidean plane geometry are remov...
The theme of this work is an angle in the history of mankind. The introductory part of the work is d...
The well-established formula for the cosine of the angle between two vectors in 3-dimensional space ...
Componente Curricular::Ensino Médio::MatemáticaThe Law of Cosines relates the three side lengths of ...
Componente Curricular::Ensino Médio::MatemáticaThe Law of Cosines relates the three side lengths of ...
summary:Many propositions about triangles are discussed in the school mathematics. There are formula...
summary:Many propositions about triangles are discussed in the school mathematics. There are formula...
This screencast gives explanation of two rules for finding unknown angles and/ or lengths of sides i...
This paper presents eleven different methods for proving addition formulas for trigonometric functio...
summary:In the first part of the article the proof of the following theorem is given: Let point $S$ ...
There are four categories of oblique triangles that can be solved and whose names express what is kn...
In school, I had to memorize the values of sine and cosine at the angles 0, 30, 45, 60, and 90 degre...
ABSTRACT The present article extends the applicability of the angle sum and difference identity rul...
The double-angle formula for sine states that sin(2x) = 2sin(x)cos(x). Computing the area of a trian...
The Pythagorean Theorem relates the sides of a right triangle. The Law of Cosines is a generalizatio...
Summary. The usual ambiguities in ordinary treatment of angles in Euclidean plane geometry are remov...
The theme of this work is an angle in the history of mankind. The introductory part of the work is d...