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Question
Encircle the odd one of the following.
Options
(–1) × (–1)
(–1) × (–1) × (–1)
(–1) × (–1) × (–1) × (–1)
(–1) × (–1) × (–1) × (–1) × (–1) × (–1)
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Solution
(–1) × (–1) × (–1)
Explanation:
- (–1) × (–1) = 1
- (–1) × (–1) × (–1) = –1
- (–1) × (–1) × (–1) × (–1) = 1
- (–1) × (–1) × (–1) × (–1) × (–1) × (–1) = 1
∴ (–1) × (–1) × (–1) is different.
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