Question

Q-2. What will be the sign of the product if we multiply the following?
(a) 199 negative integers and 20 positive integers.
(b) 10 negative integers and 1 positive integer.

please help me friends​

Answer 1

(a) Negative

(b) Positive

Explanation:-

When we multiply odd numbers of negative integers we get negative product.

Eg:- -2 * -1 * -1 = -2

When we multiply even numbers of negative integers we get positive product.

Eg:- -2 * -1 * -1 * -1= 2

When we multiply even or odd numbers of positive integers we get positive product.

Eg:- 2*1 = 2

2*1*1 = 2

Hope it helps!