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Rule: Even Power of a Negative Integer
publish date: 2026/05/04 20:29:48.946763 UTC
When a negative integer is raised to an even power, the result is (1).
Correct Answer
(1) positive
Explanation
An even number of negative factors always produces a positive product. For example, \((-2)^4 = 16\), which is positive.
Reference
Mathematics for college students