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a)
1 - 2 5 1 - 2 + 5 6 - 2 4
4 . 4 . 4 = 4 = 4 = 4
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
b)
- 2 2 - 2 + 2 0
(- 5) . ( - 5) = (-5) = (-5)
c)
3 1 - 6 3 + 1 - 6
( 1/2) . (1/2) . (1/2) = (1/2)
4 - 6 - 2
= (1/2) = (1/2)
***************************************
d)
- 2 - 3 - 2 - 3 - 5
(-7) . ( - 7) = ( - 7) = (- 7)
1 - 2 5 1 - 2 + 5 6 - 2 4
4 . 4 . 4 = 4 = 4 = 4
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
b)
- 2 2 - 2 + 2 0
(- 5) . ( - 5) = (-5) = (-5)
c)
3 1 - 6 3 + 1 - 6
( 1/2) . (1/2) . (1/2) = (1/2)
4 - 6 - 2
= (1/2) = (1/2)
***************************************
d)
- 2 - 3 - 2 - 3 - 5
(-7) . ( - 7) = ( - 7) = (- 7)
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