ICSE Class 6 Answered
What will be the sign of the product of we multiply together :
(i) 13 negative integers and 2 positive integers
(ii) 16 negative integers and 3 positive integers
Asked by Topperlearning User | 21 Apr, 2014, 01:24: PM
Expert Answer
(i) There are 13 negative integers and 2 positive integers
i.e. 13 minus signs and 2 plus signs
We know that,
when the minus sign appears odd number of times in a product the final product is negative.
Hence, when we multiply 13 negative integers and 2 positive integers the sign of the product will be negative.
(ii) There are 16 negative integers and 3 positive integers
i.e 16 minus signs and 3 plus signs
We know that,
when the minus sign appears even number of times in a product the final product is positive.
Hence, when we multiply 16 negative integers and 3 positive integers the sign of the product will be positive.
Answered by | 21 Apr, 2014, 03:24: PM
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