law of cosines


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law of cosines

[′lȯ əv ′kō‚sīnz]
(mathematics)
Given a triangle with angles A, B, and C and sides a, b, c opposite these angles respectively: a 2= b 2+ c 2- 2 bc cos A.
References in periodicals archive ?
By simplifying the 3 dimension problematic into plan problem (x, y coordinates) and using Pythagoras and Law of cosines to find the position for the first and the second axis.
Solving the inverse kinematics for the first and second axis using Pythagoras and Law of cosines
Diagram for the derivation of the law of cosines for plane triangles.
The technology uses simple geometry and the law of cosines to calculate angles created during yoga.
Before going into the details of the new design, it may be worthwhile to review a tool from trigonometry, the Law of Cosines.
The relationship between the Law of Cosines and the dot product is, of course, a known mathematical result.
While there are many trigonometric formulas, the three most commonly used in EW applications are the Law of Sines, the Law of Cosines for Angles, and the Law of Cosines for Sides.
By the circumference of a circle concluded path s on the elliptic sphere is calculated with the help of the spherical law of cosines.
For describing a general triangle from mathematics it is known the law of cosines Refer to "(1),", where "a", "b", "c" are the sides of a triangle and the angle alpha is the angle that "b" a "c" sides contain.
In a similar manner using the other versions of the law of cosines, we find that [angle]A [congruent to] [angle]D, and that [angle]B [congruent to] [angle]E.

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