what will be the sign of the product 1×-1×1×-1×1×-1×1-1........80times
Answers
Answered by
2
Answer: +1
Because -1 is repeated even times.
Answered by
2
Answer:
positive
Step-by-step explanation:
40 times +1 is there
40 times -1 is there
when a negative one is repeated even time it gives positive product.
hence,(+)×(+)=(+)
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