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11-12-2017
Mathematics

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Evaluate:

(−1)(− 1)(− 1)(− 1)
--------------------
(− 1)
(a) -1
(b) 0
(c) 1
(d) 2

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11-12-2017

(a). C because -1•-1=1•-1=-1•-1=1

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11-12-2017

The numerator of the fraction is (+1).

So the whole fraction is 1 / -1 and that's -1 . (a)

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