Question

Theresa is going to multiply -1 by itself a number of times. Which expression results in a product of positive 1 ? A (-1)(-1)(-1)(-1) B(-1)(-1)(-1)(-1)(-1) C(-1)(-1)(-1)

Answer 1

Answer:

Option (a) i.e., (-1) (-1) (-1) (-1)

Remember : If we multiply any negative number even times it becomes a positive number .

Answer 2

Answer:

heya mate ☺

$a) \: ( - 1) \times ( - 1) \times ( - 1) \times ( - 1) \\ \\ = 1 \times 1 \\ \\ = 1 \\ \\ b) \: ( - 1) \times ( - 1) \times ( - 1) \times ( - 1) \times ( - 1) \\ \\ = 1 \times 1 \times ( - 1) \\ \\ = - 1 \\ \\ c) \: ( - 1) \times ( - 1) \times ( - 1) \\ \\ = 1 \times ( - 1) \\ \\ = - 1$

So option (a) gives product as +1 .

✔ hope it helps u ✔