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## Answers

(-1)*19/ -1/ -1/-1

= (-1)/-1 (Both 19 and 3 are odd nos.)

= 1

= (-1)/-1 (Both 19 and 3 are odd nos.)

= 1

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(-1)*19/ -1/ -1/-1

= (-1)/-1 (Both 19 and 3 are odd nos.)

= 1

= (-1)/-1 (Both 19 and 3 are odd nos.)

= 1