Question

(-1)×(-1)×(-1)×(-1)=?​

Answer 1

$( - 1) \times ( - 1) \times ( - 1) \times ( - 1) = (1) \times (1) = 1$

Answer 2

ANSWER--

(-1)×(-1)= 1 because when two negative integers are multiplied the product is always positive

(-1)×(-1)= 1

so now 1×1=1

Ans 1

I hope it helps