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To solve this problem, we will follow these steps:
Step 1: We start by evaluating the expression inside the absolute value, .
When we calculate , we perform the operation:
.
Step 2: Now that we have simplified the expression to , we apply the absolute value definition. The absolute value of is found using the rule for absolute values:
Since is less than zero, we use the definition: when .
Therefore, .
Thus, the solution to the problem is .
Determine the absolute value of the following number:
\( \left|18\right|= \)
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