Respostas

2014-06-25T21:26:42-03:00
A) S= 2+2.1 =  4
S= 2+2.2 = 8
S= 2+2.3 = 12
S= 2+2.4 = 16 
  
b) S= 2-2.1 = 0
S= 2-2.2 = -2 
S= 2-2.3 = -4
S= 2-2.4 = -6  

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