Question

7. (- 1) × (- 1) multiply(-1) multiply dash (= 1) ........ 10 times is equal
to *
0 (a) - 1
O (b) 1
O (c) 1 or - 1
0 (d) none of these.​

Answer 1

- 1 × -1 × -1 × -1 ( 10 times ) = 1

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Answer 2

when we 1Xwith one so our answer is 1 So then we (-1)xten times so our answer is 1