Respostas

2014-07-03T15:30:33-03:00
A) Pg (4,12,36,108,324)
a1=4
a2=4.3=12
a3=12.3=36
a4=36.3=108
a5= 108.3=324

b) Pg (20,-40, 80, -160, 320
a1= 20
a2= 20.(-2)= -40
a3= -40.(-2)=80
a4= 80. (-2)= -160
a5= -160 . (-2)= 320

c) Pg (-10,-2,  \frac{-2}{5},  \frac{-2}{25},  \frac{-2}{125}
a1=-10
a2= \frac{-10}{1}. \frac{1}{5}= \frac{-10}{5}= -2
a3= \frac{-2}{1}. \frac{1}{5}= \frac{-2}{5}
a4= \frac{-2}{5}.  \frac{1}{5}= \frac{-2}{25}
a5= \frac{-2}{25}. \frac{1}{5}= \frac{-2}{125}
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