Respostas

2014-03-22T17:13:38-03:00
A) -8 -30 +01= - 38 + 1 = - 37
b) (- 2/3)^5 + 1 = ( - 243/32) + 1 = - 243 + 32 = -211/32
c) - 25 + 9 - 10 = - 16 - 10 = - 26
d) 9 + 1/9 = 82/9
e) 1 +1 - 1/4 = 2 - 1/4 = 7/4
f) (3/4)^4 + (3/2)^-1 = 81/256 + 2/3 = 243 + 512/ 768 = 755/768
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