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2022-07-11
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2020-06-10
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How do you expand a sum?
Expansion of a polynomial expression can be obtained by repeatedly replacing subexpressions that multiply two other subexpressions, at least one of which is an addition, by the equivalent sum of products, continuing until the expression becomes a sum of (repeated) products.
How does the sum symbol work?
Simple sum The symbol (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum. For example, the sum of first whole numbers can be represented in the following manner: 1 2 3.
What does this symbol mean ?
The symbol means sum. Is the Greek capital sigma symbol. Used commonly in algebraic functions, you may also notice it in Excel — the AutoSum button has a sigma as its icon.
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