Question

Starting from (-1)*5, write various products showing some pattern to show (-1)*(-1)=1

Answer 1

Answer:

According to the pattern,

(−1)×(5)=−5

(−1)×(4)=−4

(−1)×(3)=−3

(−1)×(2)=−2

(−1)×(1)=−1

(−1)×(0)=0

(−1)×(−1)=1