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Why For x less than 0 the absolute value of x equals negative x please explain?
Wiki User
∙ 12y ago
That is how the absolute value is defined.
For x < 0 the value of x is negative (by definition).
Therefore, the value of negative x is positive (negative of a negative).
So abs(x) = -x when x < 0
Wiki User
∙ 12y ago
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