Question

Find the odd one out (a) (–1) × (–1) (b) (–1) × (–1) × (–1) (c) (–1) × (–1) × (–1) × (–1) (d) (–1) × (–1) × (–1) × (–1) × (–1) × (–1)​

Answer 1

Answer:

(a) = 1

(b) = - 1

(c) = 1

(d) = 1

Step-by-step explanation:

Option (b) is the correct answer

Answer 2

Step-by-step explanation:

a) (-1)×(-1) = 1

b) (-1)×(-1)×(-1) = -1

c) (-1)×(-1)×(-1)×(-1) = 1

d)(-1)×(-1)×(-1)×(-1)×(-1)×(-1) = 1

conclusion- multiplication of (-1) with (-1) for even times that means2,4,6 times gives result of 1

and multiplication of (-1) with (-1) for the odd times that means 3,5,7 gives result of (-1).