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what does the symbol x mean in math. X capital X a variable. The Mathematical symbol is used to denote a function or to signify the relationship between numbers and variables.
The following list of mathematical symbols by subject features a selection of the most common symbols used in modern mathematical notation within formulas grouped by mathematical topic. Algebra uses symbols for quantities operations relations or grouping. Not as 100 x 99 x 98 x 97 x.
X 2 x 1 but instead as 100 x 99 x 98.
A set is a collection of things usually numbers. Defined here in Chapter 3. Set A is included in set B. 100 x 99 9900.