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This article lists mathematical identities, that is, identically true relations holding in mathematics. Bézout's identity (despite its usual name, it is not, properly speaking, an identity) Binet-cauchy identity
"The mathematics implicit in each practice". [6] "The study of mathematical ideas of a non-literate culture". [7] "The codification which allows a cultural group to describe, manage and understand reality". [8] "Mathematics…is conceived as a cultural product which has developed as a result of various activities". [9]
This category is for mathematical identities, i.e. identically true relations holding in some area of algebra (including abstract algebra, or formal power series). Subcategories This category has only the following subcategory.
A left identity element that is also a right identity element if called an identity element. The empty set ∅ {\displaystyle \varnothing } is an identity element of binary union ∪ {\displaystyle \cup } and symmetric difference , {\displaystyle \triangle ,} and it is also a right identity element of set subtraction ∖ : {\displaystyle ...
Visual proof of the Pythagorean identity: for any angle , the point (,) = (, ) lies on the unit circle, which satisfies the equation + =.Thus, + =. In mathematics, an identity is an equality relating one mathematical expression A to another mathematical expression B, such that A and B (which might contain some variables) produce the same value for all values of the variables ...
An ethnic identity is an identification with a certain ethnicity, usually on the basis of a presumed common genealogy or ancestry. Recognition by others as a distinct ethnic group is often a contributing factor to developing this identity. Ethnic groups are also often united by common cultural, behavioral, linguistic, ritualistic, or religious ...
The following is a list of contemporary ethnic groups.There has been constant debate over the classification of ethnic groups.Membership of an ethnic group tends to be associated with shared ancestry, history, homeland, language or dialect and cultural heritage; where the term "culture" specifically includes aspects such as religion, mythology and ritual, cuisine, dressing (clothing) style and ...
In mathematics and analytic number theory, Vaughan's identity is an identity found by R. C. Vaughan that can be used to simplify Vinogradov's work on trigonometric sums. It can be used to estimate summatory functions of the form