Question

nestas progressões aritmétricasdetermne a razão de:
a)31,25,19,13,...
b)5;5,25;5,5;5,75;...
c)-7,-4,-1,2,....
d)1,7;1,6;1,5;1,4;....
e)1/2,1,3/2,2....

Answer 1

a) r = 25 - 31 ==> r = - 6

b) r = 5,25 - 5 ==> r = 0,25

c) r = - 4 - (- 7)
r = - 4 + 7 ==> r = 3

d) r = 1,6 - 1,7 ==> r = - 0,1

e) r = 1 - 1/2
r = (2 - 1)/2 ==> r = 1/2