What will be the sign of the product is we multiply together

 a)8 negative integers and 1 positive integer?

 b)21 negative integers and 3 positive integers?  

c)199 negative integers and 10 positive integers?

Asked by MATHUR SRINIVASAN | 3rd May, 2019, 10:59: AM

Expert Answer:

Let a negative integer be -1 and a positive integer be 1.

a. (-1)8 × 1 = 1   ... positive integer

b. (-1)21 × (1)3 = -1  ... negative integer

c. (-1)199 × (1)10 = -1  .... negative integer

Answered by Yasmeen Khan | 3rd May, 2019, 11:03: AM