Law-of-cosines



noun, Trigonometry.
1.
a law stating that the square of a side of a plane triangle is equal to the sum of the squares of the other two sides minus twice the product of the other sides multiplied by the cosine of the angle between them.
2.
a law stating that the cosine of an arc of a spherical triangle equals the sum of the product of the cosines of the other two arcs added to the product of the sines of the other two arcs multiplied by the cosine of the angle between them.

Tagged:

Read Also:

  • Law-of-diminishing-marginal-utility

    noun, Economics. 1. the law that for a single consumer the marginal utility of a commodity diminishes for each additional unit of the commodity consumed.

  • Law-of-definite-composition

    noun 1. Chemistry. the statement that in a pure compound the elements are always combined in fixed proportions by weight. 2. Logic. the law that either a proposition or its denial must be true.



  • Law of dominance

    law of dominance See under Mendel’s law.

  • Law of effect

    noun 1. (psychol) another name for Thorndike’s law See Thorndike



Disclaimer: Law-of-cosines definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.