In mathematics, a sum of a sequence of terms is called a series, so a triangular number is a series of integers. Combining with the previous result we have shown that a series of integers equals an alternating series of

Explain mathematic problem

Mathematics is the study of numbers, shapes, and patterns. It is used in everyday life, from counting to calculating taxes, and its applications are endless.

Clarify mathematic equation

In mathematics, an equation is a statement that two things are equal.

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The triangular number sequence is the representation of the numbers in the form of equilateral triangle arranged in a series or sequence.

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In modern terminology, any (ordered) infinite sequence of terms (that is, numbers, functions, or anything that can be added) defines a series, which is the operation of adding the ai one after

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