Dê o valor de:
a) - (-1)
--------- =
-5
b) - (-3)
---------- =
- (-5)
c) -4-6
----------- =
-2
d) -7-8-3
-------------- =
-2
e) (+6) x (-7)
----------------- =
-21
a) - (-1)
--------- =
-5
b) - (-3)
---------- =
- (-5)
c) -4-6
----------- =
-2
d) -7-8-3
-------------- =
-2
e) (+6) x (-7)
----------------- =
-21
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b)+3/+5= +3/5
c) - 10/ -2= +5
d) - 18/ -2= +9
e) - 42/ -21= +2