Answer :

choixongdong
top:
(-1/2 +1)(1/2 -1)(1+1)
= (1/2) (-1/2)(2)
= -1/2
so
-1/2  / 1/2)
= -1/2 x 2
= -1

answer is -1
musiclover10045

-1/2+1 = 1/2

-(-1/2)-1 = -1/2

1-2*-1/2 = 2

1/2 * -1/2 * 2 = -1/2

-1/2/-(-1/2) = -1

answer is -1

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