Seudónimo Seudónimo

09-03-2017
Mathematics

contestada

consider the following geometric sequence
-5,10,-20,40
if the explicit formula for the sequence above is expressed in the form an=b*c^n-1, determine the values pf b and c

b=
c=

Respuesta :

ghanami ghanami

12-05-2017

hello :
an=b*c^n-1, b ; the first term c : common ratio
b=-5 c=40/-20=-20/10 = 10/-5 = -2

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