|a| =
The symbol |a| represents the absolute value of the number a
The symbol |a| represents the absolute value of the number a. The absolute value of a number is its distance from zero on the number line, regardless of its sign. So, if a is a positive number or zero, then |a| is equal to a. However, if a is a negative number, then |a| is equal to the positive value of a.
For example, if a = -5, then |a| = 5 since -5 is 5 units away from zero on the number line. On the other hand, if a = 3, then |a| = 3 since 3 is also 3 units away from zero.
The absolute value function can be useful in various mathematical problems, such as solving equations, inequalities, and finding the distance between two points.
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