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What will be the sign of the product of the following (i) 24 times of negative integer? (ii) 35 times of negative integer? |
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Answer» (- 1) × (- 1) = + 1 (- 1) × (- 1) × (- 1) = – 1 (- 1) × (- 1) × (- 1) × (- 1) = + 1 (- 1) × (- 1) × (- 1) × (- 1) × (- 1) = – 1 If negative integer multiplied even number of times, the product is positive integer. If negative integer multiplied odd number of times, the product is negative integer. (i) (-a) × (-a) × ………….. 24 times = + a (Positive integer) (ii) (-a) × (-a) × ……………. 35 times = – a (Negative integer) |
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